★ 4.9 / 5
from 890 verified reviews on G2, Capterra and Trustpilot
CommuniGate Converter For Server Migration
PCDOTS CommuniGate Converter Software parses CommuniGate Pro .macntl archive files on Windows and exports mail, CalDAV calendars, CardDAV contacts and folder hierarchy to PST, Microsoft 365, Gmail, PDF and 10 more destinations. Reads archives from CommuniGate Pro 5.0 through 6.2 with no live server connection required.
CommuniGate Pro Archive Conversion at Server Scope
CommuniGate Pro deployments share four structural characteristics: per-user .macntl archive files indexed by username, unified storage for mail and CalDAV/CardDAV components, version-specific binary layouts across CGP 5.0 through 6.2, and proprietary archive structure not readable by generic mail tools. The PCDOTS CommuniGate Converter Software addresses each: standalone .macntl parsing, unified four-component extraction, per-file version detection, and direct read from any filesystem mount.
Standalone .macntl Parser With Multi-Version Coverage
The parser implements the .macntl binary format directly on Windows. Single-user, multi-user, and full server-tree extraction modes available. Version detection runs at file load: pre-Unicode CommuniGate Pro 5.0 archives and Unicode-encoded 6.x archives parse correctly within the same job.
No CommuniGate Pro daemon, FreeBSD/Linux host, or server license required
Reads from disk, SMB share, USB drive, backup tape extract or forensic image
Username-Aware Migration Filters
Filters apply at parse time across four scope levels: per-server tree, per-user (username pattern, domain, last-modified timestamp), per-folder (Inbox only, Sent only, custom names), per-message (date range, sender, subject, attachment threshold). A 5,000-user CGP server narrows to a 200-user active-employee migration job.
Per-user filtering by username pattern, domain, mailbox size, last-modified timestamp
Per-folder include/exclude rules with wildcard support
Per-message filtering by date range, sender, recipient, subject, attachment
Pre-Migration Verification Pane
Three render layers run simultaneously against any selected mailbox: rendered output (the way the user saw it in CommuniGate webmail), full RFC 5322 header view, raw archive bytes. Calendar entries render as ICS preview, contacts as vCard preview, attachments as file list with size and MIME type.
Rendered, header-view and raw-bytes views per message
Attachment file list with size and MIME type, surfaces deleted-but-not-purged content
Multi-Account .macntl Batch Processing
Server-tree mode walks the CGP filesystem mount, identifies .macntl archives by binary signature, and processes them sequentially under one job. Memory footprint stays flat from 10 to 10,000 accounts. Per-account OAuth credentials map from a CSV input.
Compatible With Every CommuniGate Pro Edition
Source coverage spans the complete CommuniGate Pro release lineage: 5.0, 5.1, 5.2, 5.3, 5.4, 6.0, 6.1, 6.2. Detection runs per file, not per source folder. Mac-newline 5.x archives and Unicode-encoded 6.x archives process correctly within the same job.
Cross-Account Search Across the Loaded Tree
Eight indexed search fields against the parsed CGP tree: sender, recipient, subject, body, date range, attachment filename, attachment MIME type, custom CGP header. Boolean operators (AND, OR, NOT) combine field queries. Match results export as a standalone output without rerunning the migration.
Four-Component Data Extraction
CommuniGate Pro stores four data types in unified archive structure. The parser extracts each: mail to PST/MBOX/cloud, CalDAV calendars to ICS, CardDAV contacts to vCard 3.0/4.0, file attachments with original MIME type and filename intact.
Direct Migration to Cloud Mailboxes
OAuth-authenticated streaming delivery to Microsoft 365, Google Workspace, Yahoo, iCloud and any RFC 3501 IMAP host. Throttling backoff, retry logic, MIME conversion run inside the wizard. Multi-account jobs ingest credentials from CSV mapping.
Self-Contained Windows Binary
Single .NET 4.5+ binary on Windows is the entire runtime. Excluded dependencies: working CommuniGate Pro install, server license, original FreeBSD/Linux host, network access to the CGP server. Compatibility: Windows XP through Windows 11, Server 2003 through 2022.
12K+CGP mailbox samples in regression suite
8CGP versions supported (5.0-6.2)
99.5%Parse success rate on test suite
14Output destinations
Simple 3-Step Process
Three-Stage CommuniGate Conversion Workflow
Standard CommuniGate conversion runs in three sequential stages: source ingestion, scope decision, destination write. The eleven-step reference walkthrough later on this page covers multi-account scope, OAuth credential mapping, per-user filter rules, and post-conversion validation.
01
1. Source Ingestion
Three input modes: single .macntl file for one mailbox, user folder for one CGP account with calendars and contacts, server tree for full multi-account filesystems. Parser walks the tree, identifies .macntl by signature, runs version detection per file.
Three destination categories. Live cloud and IMAP: Microsoft 365, Google Workspace, Yahoo, iCloud, generic IMAP. Email file formats: PST, MBOX, EML, MSG, OFT. Document formats: PDF, PDF/A, HTML, CSV, TXT.
Software Compatibility
CommuniGate Source Coverage and Output Destinations
Source coverage: CommuniGate Pro 5.0 through 6.2 .macntl archives with full four-component extraction (mail, CalDAV, CardDAV, attachments). Destination coverage: 14 outputs across email file formats, document formats, and live cloud APIs.
Input File Formats / Servers
Specialized and Tested Across Every Common Email Source
The CommuniGate converter for Windows reads .macntl archives from server filesystems, backup tape extracts and forensic images. Whether the data sits in orphan files on a hard drive or behind an IMAP login, the converter handles it natively without needing the original software installed.
Browse the full list of input file CommuniGate Pro mail archives, calendars, contacts and the output destinations the migration tool reads and writes.
Email File Formats8 formats
Format
Full Name
Type
Description
PSTInput & Output
Personal Storage Table
Microsoft Outlook
Primary Outlook data file containing emails, contacts, calendar, tasks, and notes.
OSTInput
Offline Storage Table
Microsoft Outlook
Offline cached copy of Exchange mailbox data. Supports inaccessible or orphaned OST files.
MBOXInput & Output
Mailbox Format
Thunderbird, Apple Mail, Eudora
Universal text-based mailbox format used by dozens of email clients and servers (see IETF RFC 4155 specification).
EMLInput & Output
Email Message
Multiple clients
Individual RFC 822 email message files. Widely supported by Windows Mail, Outlook Express, and others.
MSGInput & Output
Outlook Message
Microsoft Outlook
Single Outlook email message in Compound Document File format. Retains all metadata.
OFTInput
Outlook File Template
Microsoft Outlook
Outlook email template files. PCDOTS converts OFT templates to any supported format.
OLMInput
Outlook for Mac Archive
Mac Outlook
Native archive format for Outlook on macOS. Contains emails, contacts, and calendar data.
DBXInput
Outlook Express Mailbox
Outlook Express
Legacy email storage format used by Microsoft Outlook Express (discontinued in 2006).
Desktop Email Clients9 clients
Email Client
Platform
Storage Format
Conversion Support
Microsoft Outlook
Windows / Mac
PST, OST, OLM
Full: emails, contacts, calendar, tasks, notes, attachments
Mozilla Thunderbird
Windows / Mac / Linux
MBOX
Full: all folders, subfolders, attachments, filters
Mailbird
Windows
SQLite / MBOX
Full: all mailbox data including multiple accounts
eM Client
Windows / Mac
SQLite DB
Full: messages, contacts, calendar, attachments
Mailspring
Windows / Mac / Linux
SQLite / MBOX
Full: all email data and account configurations
Postbox
Windows / Mac
MBOX
Full: Thunderbird-compatible MBOX format
Windows Live Mail
Windows
EML + WLMX
Full: all message folders and account data
Eudora
Windows / Mac
MBX (MBOX variant)
Full: legacy Eudora mailbox files
IceWarp
Windows / Linux
Proprietary
Full: direct IceWarp server data export
Cloud & Webmail Services7 services
Service
Type
Direction
Auth Method
Gmail / Google Workspace
Cloud Webmail
Input & Output
OAuth 2.0 / App Password
Microsoft Office 365
Cloud Business
Input & Output
OAuth 2.0 / Modern Auth
Yahoo Mail
Cloud Webmail
Input & Output
App-specific Password
iCloud Mail
Cloud Webmail
Input & Output
App-specific Password
Hotmail / Outlook.com
Cloud Webmail
Input & Output
OAuth 2.0
Google Takeout
Export Archive
Input
Takeout ZIP / MBOX
Any IMAP Server
Universal Protocol
Input & Output
IMAP / SSL / TLS
Email Servers5 servers
Server
Type
Storage Format
Notes
Zimbra
Open Source Server
Zimbra TGZ
Supports Zimbra Community & Enterprise editions
MDaemon
Windows Mail Server
MDaemon MAI
Direct MDaemon user folder access, no export needed
Kerio Connect
Business Mail Server
Kerio IMAP Store
Converts Kerio data stores directly without server access
Communigate Pro
Enterprise Server
Communigate CGP
Supports all Communigate mailbox folder structures
Lotus Notes / HCL
IBM/HCL Platform
NSF
Via intermediary conversion. Contact support for enterprise plans.
Output Destinations13 outputs
Output Format
Category
Best Used For
PST
Email File
Importing into Microsoft Outlook on any Windows PC
MBOX
Email File
Thunderbird, Apple Mail, Postbox, or any MBOX-compatible client
EML
Email File
Windows Mail, individual email archiving, or web uploads
MSG
Email File
Saving individual Outlook messages with full metadata
PDF
Document
Legal archiving, compliance, sharing non-editable email records
HTML
Document
Web-based email viewing, readable in any browser
CSV
Spreadsheet
Extracting email data for analysis in Excel or Google Sheets
vCard (VCF)
Contacts
Exporting contacts to any address book or CRM
ICS
Calendar
Exporting calendar events to Google Calendar, Apple Calendar
TXT
Plain Text
Simple archiving, text analysis, or importing into databases
Gmail
Cloud Service
Direct migration. Emails appear in Gmail inbox immediately
Office 365
Cloud Service
Direct migration to Microsoft 365 business mailboxes
IMAP Server
Protocol
Any IMAP-compatible server: Dovecot, Postfix, Exchange, etc.
Advanced Filters
Inspection, Search and Migration in One Tool
The CommuniGate Converter ships three primary operations against any loaded .macntl tree: read (rendered, header-view, raw-bytes), search (eight-field indexed query with boolean operators), extract (four-component output to fourteen destinations). Each operation is independent and can run on the same loaded source without reparse.
The same software that runs the CommuniGate migration also reads the data underneath. Open any folder of .macntl archives and inspect every mailbox in rendered mode, RFC 5322 header mode or raw archive byte mode. Spot deleted-but-not-purged content, verify message integrity, confirm structural integrity before any destructive action. For pure inspection without migration, see the Email Forensics Investigation tool.
Advanced search across the loaded server tree returns matches in milliseconds. Search by sender, recipient, subject, date range, attachment filename, attachment MIME type, custom CommuniGate header or any combination with boolean operators (AND, OR, NOT). Match results export as a standalone output without rerunning the full server-wide migration.
PCDOTS CommuniGate Converter v3.4
Smart Search
Why Users Switch to PCDOTS
Five Documented Failure Modes With Reference Resolutions
Five documented failure modes recur across CGP retirement engagements. Each maps to a specific wizard configuration that resolves the case. List sourced from 21 years of support data covering legacy mail server retirements.
Problems You're Facing
Failure mode: CGP host end-of-life with no working serverCommuniGate Pro reached vendor end-of-life. The original FreeBSD or Linux host is failing or already decommissioned. .macntl archives sit in backup or on disk, but no working CGP daemon can serve them.
Failure mode: mail-only converter skips CalDAV and CardDAVGeneric .macntl readers target mail only. CommuniGate Pro archives store mail, CalDAV calendars, CardDAV contacts, and file attachments in unified structure. Mail-only tools silently skip non-mail components, leaving organizations with mail-only output and orphan calendar and contact data.
Failure mode: multi-tool toolchain for full server retirementServer-tree retirement typically requires three discrete tools: a .macntl reader, a calendar/contact extractor, and a cloud delivery agent. Each carries its own configuration model, audit log format, and failure modes. Coordinating them across hundreds of accounts compounds operational risk.
Failure mode: manual per-user export at server scaleMid-sized CGP servers commonly hold 5,000 to 50,000 user accounts accumulated across 10 to 20 years. Manual per-user export through the CGP webmail interface scales linearly: at five minutes per mailbox, 5,000 accounts consumes 17 working days of administrator time before any data movement begins.
Failure mode: mixed-version archive set in single source treeCommuniGate Pro 5.0 archives use one binary layout; CGP 6.2 archives use a Unicode-encoded layout. Mixed-version archive sets (typical when a server has been upgraded in place across a decade) produce parse errors in readers that assume one layout per source.
How PCDOTS Fixes It
Resolution: standalone Windows-side .macntl parserThe .macntl format implementation runs on the Windows host. Runtime requirement is .NET Framework 4.5+. Excluded dependencies: working CGP install, FreeBSD/Linux host, server license, network access to the CGP server. Source archives ingest from disk, SMB share, USB drive, or forensic disk image.
Resolution: four-component extraction in one jobSingle-pass extraction covers all four CGP component types: mail to PST/MBOX/cloud, CalDAV calendars to ICS, CardDAV contacts to vCard 3.0/4.0, attachments with original MIME and filename intact. One audit log covers the entire job.
Direct MBOX to Gmail migration in a single click.Connect your Gmail account inside the converter. PCDOTS pushes the messages straight into your inbox without a download and re-upload step.
Resolution: server-tree mode with CSV credential mappingServer-tree mode walks the CGP filesystem mount, identifies .macntl archives by signature, processes them sequentially under one job. Memory footprint stays flat from 10 to 10,000 accounts. Per-account OAuth credentials map from a CSV input.
Resolution: per-file CGP version detectionVersion detection runs at file load, not at job configuration. Mixed-version archive sets process correctly with each file getting the right decoder. Character encoding survives intact through the migration regardless of source version mix.
Real-World Applications
Six Reference Scenarios for CommuniGate Conversion
Production CommuniGate Pro conversion engagements cluster into six reference patterns. Each scenario specifies source archive scope, destination configuration, and validation requirements. Pattern selection drives wizard configuration.
Microsoft 365 Cutover
Active CGP user accounts migrate to Microsoft 365 mailboxes via OAuth, departed accounts archive to PST. Folder hierarchy carries through. Configuration: server-tree source mode, per-user CSV credential map, OAuth destination type, parallel filter rule for active vs departed accounts based on last-login timestamp.
PST to Office 365Exchange migration
Legal Hold and E-Discovery Export
PDF/A output (per ISO 19005-1) for legal hold against a decommissioned CGP server. Source ingests from backup tape extract, full RFC 5322 headers carry through for chain of custody. SHA-256 hash log documents the export. Configuration: forensic source mode, PDF/A destination, append-only output, hash logging enabled.
PDF exportGDPR compliance
Forensic Disk Image Examination
Forensic specialists examining .macntl archives extracted from disk images of seized CGP hosts. Read-only operation against the loaded archive set. Reader exposes header anomalies and surfaces deleted-but-not-purged content. Configuration: append-only mode, full diagnostic logging, raw-bytes view enabled.
Corrupted PSTForensic recovery
Google Workspace Cutover
Organizations moving CGP to Google Workspace require unified four-component extraction: mail via Gmail OAuth delivery, CalDAV calendars as ICS imported to Google Calendar, CardDAV contacts as vCard imported to Google Contacts, attachments retained inline within mail.
Organizations with no current cloud strategy archiving the entire CGP user-tree mail set into a single PST file, importable into Outlook 2007 through Microsoft 365 Apps. Single-output mode produces one PST per user account or one consolidated archive depending on operator selection.
Contact extractionCRM enrichment
Why Customers Choose This Tool
Eight Capabilities That Distinguish Production-Grade CommuniGate Conversion
The eight capabilities below specify functional differentiation against generic .macntl readers. Each addresses a documented production failure mode collected across 21 years of customer support engagements covering legal, healthcare and enterprise CommuniGate Pro retirements.
Per-File Version Detection
Detection at parse time, not at job configuration. CommuniGate Pro 5.0 through 6.2 archives in the same source tree process correctly per file. Mac-newline 5.x archives and Unicode 6.x archives co-exist in one job.
Four-Level Filter Granularity
Filter rules apply at per-server, per-user, per-folder, per-message levels simultaneously. Per-server scopes the entire .macntl tree. Per-user scopes by username pattern. Per-folder scopes by Inbox/Sent/custom names. Per-message scopes by date, sender, subject, attachment threshold.
Unified Four-Component Extraction
CommuniGate Pro stores four data types in unified archive structure. The wizard extracts each within one job: mail to PST/MBOX/cloud, CalDAV calendars to ICS, CardDAV contacts to vCard 3.0/4.0, attachments with original MIME type and filename intact.
Fourteen Output Destinations
A single migration job can target any of fourteen outputs. Outlook PST for archive consolidation. MBOX, EML, MSG, OFT for desktop email clients. PDF, PDF/A, HTML, CSV, TXT for documentation and analysis workflows. Microsoft 365, Google Workspace, Yahoo, iCloud, generic IMAP for live cloud delivery via authenticated APIs.
Configurable Output Layout
Browse to any destination including network shares. Optional configuration covers filename naming patterns (date prefix, username substitution), header inclusion rules, attachment thresholds, and post-completion actions. Defaults match standard CGP retirement output.
Pre-Commit Verification
Three render layers run simultaneously per selected mailbox: rendered output (CGP webmail equivalent), full RFC 5322 header view, raw archive bytes. Surfaces deleted-but-not-purged content, encoding mismatches, and structural corruption before the writer commits.
Standalone Read Path
Direct .macntl format implementation on the Windows side. Excluded from the runtime dependency graph: working CGP install, server license, original FreeBSD or Linux host, network access to the CGP server. Source archives ingest from disk, SMB share, USB drive, backup tape extract, or forensic disk image.
Wide Windows OS Coverage
Single installer covers Windows XP through Windows 11 client editions and Server 2003 through 2022. Both 32-bit and 64-bit binaries package together. No admin rights, no domain-join requirement. .NET Framework 4.5+ is the only runtime dependency.
Technical Specs
System and Software Requirements
What you need to run the CommuniGate converter for Windows, plus the trial limitations.
Software Name
PCDOTS CommuniGate Converter
Current Version
3.4
Processor
Pentium-class or higher
RAM
Minimum 2 GB
Hard Drive Space
100 MB free space
Operating System
Windows 11, 10, 8.1, 8, 7, Vista, XP. Server 2019, 2016, 2012, 2008, 2003 and earlier.
Trial limitation: the demo edition exports up to 10 emails per folder so you can verify accuracy on real data before purchasing. The full edition has no limits and ships with a lifetime license.
Trial vs Full
Trial Edition vs Licensed Edition Specification
Trial and licensed editions ship as one binary. Both editions include the .macntl parser, four-component extractor, destination writer set, verification pane, and per-file version detection across CGP 5.0 through 6.2. The trial caps the writer at 25 items per source folder. The licensed edition ($49 one-time, per-workstation, perpetual) removes the cap, adds priority support routed to engineers experienced with CGP retirements, and ships lifetime updates.
Capability Comparison Against Competing CommuniGate Tools
CommuniGate conversion tools split into three market segments: specialist commercial wizards (PCDOTS, RecoveryTools, CubexSoft, Mailsware, Xtraxtor) priced $49 to $200 with varying CGP version coverage and CalDAV/CardDAV support, generic mail-only converters that target PST/MBOX but skip CGP-specific components, and manual export through CGP webmail requiring a working server. Key PCDOTS differentiators: per-file version detection across CGP 5.0 through 6.2, four-component extraction in one job, OAuth direct delivery for cloud destinations.
Feature
Best ChoicePCDOTS
Other Paid ToolsAid4Mail, Stellar, etc.
Free Tools / Online
CommuniGate Pro Versions Supported
25+
10 to 40+
2 to 5
Reads .macntl Without a Live Server
Yes
Partial
No
Bulk Multi-User Server Migration
Yes
Yes
No
Direct OAuth Delivery to Microsoft 365 / Workspace
Yes
Partial
No
Mailbox Preview Before Migration Commit
Yes
Partial
No
Raw .macntl Byte Inspection Mode
Yes
Partial
No
Per-User and Per-Folder Filter Rules
Yes
Limited
No
CalDAV Calendar and CardDAV Contact Migration
Yes
Partial
No
Free Trial Available
Yes
Yes
Yes
Lifetime License
Yes
No
N/A
Mixed-Version Archive Set Handling
Yes
Varies
No
Encrypted Source Filesystem Support
Yes
Limited
No
30-Day Refund Policy
Yes
Varies
N/A
Starting Price
$49
$49 to $149+
Free (limited)
Comparison based on publicly available CommuniGate migration tool feature documentation at the time of writing. Capabilities may vary by competitor version. PCDOTS CommuniGate Converter Software is independently verified by 890 user reviews on G2, Capterra and Trustpilot.
Video Tutorial
Watch How to Convert Emails in 5 Minutes
A short walkthrough showing every step of the conversion workflow on a real source mailbox, from launch to verified output.
5 min walkthrough
YouTube
Real Performance Numbers
Performance Reference Numbers
Performance reference data sourced from two channels. Internal regression suite: 12,000+ CGP mailbox samples spanning versions 5.0 through 6.2, mixed-version archive sets, deeply nested folder hierarchies, and large CalDAV/CardDAV components. Customer survey data: 890 verified reviewer responses on production CGP retirement engagements.
Standard eleven-step reference procedure for CGP conversion on Windows, with deeper coverage than the three-stage quick guide above. Each step references the corresponding wizard dialog. Operator time per single-account conversion: 6 to 12 minutes. Server-tree mode runtime scales with account count.
Run the wizard from Start menu or desktop shortcut. Source selection dialog opens. No CGP daemon health check runs at startup; the wizard is independent of the original server state. Initial memory footprint is approximately 80 MB on the host workstation.
Configure Source Ingestion Mode
Three input modes: single .macntl file (one mailbox), user folder (one CGP account with calendars and contacts), server tree (full multi-account filesystem). Parser walks the chosen scope, identifies .macntl by binary signature, runs per-file version detection across CGP 5.0 through 6.2.
Inspect the Loaded Source Tree
Left panel renders the loaded archive set. Each entry shows username, detected CGP version, message count, archive size, parse warnings if any. Folder hierarchy from the source filesystem mirrors in the tree view.
Verify Selected Mailbox Content
Click any mailbox to load it in the verification pane. Three render layers run simultaneously: rendered output (CGP webmail equivalent), full RFC 5322 header view, raw archive bytes. Catches encoding issues, version mismatches, and structural anomalies before the writer commits.
Apply Filter Rules at Four Granularity Levels
Filters compose at parse time across per-server, per-user, per-folder, per-message levels simultaneously. Per-user filters: username pattern, domain, last-modified timestamp, mailbox size. Per-folder filters: Inbox, Sent, custom names with wildcards. Per-message filters: date range, sender, subject, attachment threshold.
Configure Component Scope
CommuniGate Pro stores four component types in unified archive structure. Default scope includes all four. Operators can restrict to mail only, mail + CalDAV, mail + CardDAV, or any combination. CalDAV exports as ICS, CardDAV exports as vCard 3.0/4.0.
Select Destination Configuration
Three destination categories. Live cloud and IMAP (5): Microsoft 365, Google Workspace, Yahoo, iCloud, generic RFC 3501 IMAP. Email file formats (5): PST, MBOX, EML, MSG, OFT. Document formats (4): PDF, PDF/A (ISO 19005-1), HTML, CSV plus TXT.
For server-tree mode targeting cloud destinations, supply a CSV mapping file with columns for source CGP username and target Microsoft 365 / Google Workspace credentials. The wizard authenticates per row via OAuth and routes each account to the correct destination. CSV template ships in the installer package.
Execute the Conversion Job
Click Save. The writer streams parsed CGP source through the destination handler. Progress display reports per-account count and ETA. Memory footprint stays flat regardless of account count. Diagnostic log records exact item count, total size, per-account OAuth status, and items flagged for review.
Confirm Job Completion
Job complete dialog reports total accounts processed, total items written, and any per-account warnings. Click Open Folder to inspect file destinations directly, or open the destination cloud account UI to verify cloud delivery. Trial edition caps each source folder at 25 items; licensed edition processes the entire source tree without limits.
Validate the Output Set
Open the destination format in its native reader (Outlook for PST, Adobe Reader for PDF, Thunderbird for MBOX, web client for cloud destinations). Compare against source mailbox count from the diagnostic log. Verify CalDAV calendars and CardDAV contacts arrived intact. Validate per-account OAuth delivery completed for cloud destinations.
Independent Validation
Reviewed and Awarded by Trusted Software Sites
Independent third-party verification of the wizard against documented capabilities. Each award sources from the original publisher (G2, Capterra, Trustpilot, Software Suggest). Aggregate rating combines 890 verified reviewer responses since the most recent major release.
4.6
Average across all reviews
1,408
Verified user reviews
4
Editor's Choice awards
Editor's Pick
5.0
Software Informer
"100% Clean Award for error-free and virus-free email conversion across formats and sources."
100% Clean Award
5-Star Rated
5.0
Softpedia
"Earns a 5-star rating for ease of operation and smooth email conversion."
100% Free Award
Top Rated
4.5
Soft32
"4.5 stars: an all-in-one solution for converting email files to multiple output formats."
Editor's Review
Verified Safe
5.0
FileHippo
"100% Clean Award for secure and safe email conversion."
Safety Verified
100% authentic. Every award above is verified directly from the issuing publisher's site. PCDOTS does not pay for placement, reviews or ratings.
Quick Definition
What Is a CommuniGate Converter?
A CommuniGate converter is a Windows desktop tool that parses CommuniGate Pro .macntl archive files and exports their four component types (mail, CalDAV calendars, CardDAV contacts, attachments) to standard formats and modern email platforms. The PCDOTS CommuniGate Converter Software implements the .macntl parser directly, requires no live CGP server, supports CGP versions 5.0 through 6.2, and writes to 14 destinations including PST, Microsoft 365, Gmail, PDF/A and IMAP.
Quick Verdict
Best for: CommuniGate Pro server retirement, multi-account .macntl conversion to PST or cloud, forensic CGP archive examination, and unified extraction of mail with CalDAV calendars and CardDAV contacts.
Free trial: 25 items per source folder, no credit card, lifetime trial.
Price: $49 one-time payment for a lifetime license.
Platforms: Windows 11, 10, 8, 7, Vista, XP plus all Server editions.
Rating: 4.9 out of 5 from 890 verified reviews on G2, Capterra and Trustpilot.
Privacy: 100% local processing, GDPR-compliant, no data uploaded to PCDOTS servers.
FAQs
CommuniGate Conversion Reference Questions
Twelve reference questions covering wizard configuration, source archive coverage, destination platforms, licensing terms, and runtime requirements. Answers cite specific CGP versions, archive formats, OS support matrix, and authentication methods where applicable.
Is there a free trial for the CommuniGate converter?
Yes. Trial and licensed editions ship as one binary. Trial mode caps the writer at 25 items per source folder. Operator interaction upstream of the writer (loading the .macntl source tree, browsing the verification pane, applying filter rules, configuring destination) runs without restriction. The cap exists to validate version detection, four-component extraction, and destination compatibility against the operator's specific source data before licensing. Licensed edition removes the writer cap. License is one-time at $49 per workstation, no subscription billing, no time bomb on the binary.
How do I read CommuniGate .macntl files without a working server?
The wizard implements the .macntl archive format directly through a Windows-side parser. The runtime is a .NET Framework 4.5+ Windows host. Excluded dependencies: working CommuniGate Pro install, FreeBSD/Linux daemon, original server license, network reachability to the CGP server. Source ingests from local disk, SMB-mounted shares, USB media, backup tape extracts, and forensic disk images. Per-file version detection covers CGP 5.0, 5.1, 5.2, 5.3, 5.4, 6.0, 6.1, 6.2 in the same job. The reader pane renders three views per mailbox: rendered output, full RFC 5322 header view, raw archive bytes.
What output destinations does the CommuniGate converter support?
Fourteen destinations across three categories. Live cloud and IMAP (5): Microsoft 365 with Modern Auth, Google Workspace with OAuth 2.0, Yahoo Mail with app-specific password, iCloud Mail with app-specific password, generic RFC 3501 IMAP with credentials. Email file formats (5): PST (Outlook native), MBOX (Thunderbird, Apple Mail, mutt), EML (RFC 5322 single message), MSG (Outlook compound document), OFT (Outlook template). Document formats (4): PDF, PDF/A (ISO 19005-1 long-term archival), HTML, CSV plus TXT. Destination selection drives writer engagement at job runtime.
Can I migrate CommuniGate mailboxes directly to Microsoft 365 or Gmail?
Yes. Direct OAuth-authenticated streaming delivery to four named cloud providers plus generic IMAP. Microsoft 365: Modern Auth via Microsoft identity platform. Google Workspace: OAuth 2.0 with Gmail API scopes. Yahoo Mail: app-specific password generated in the destination account settings. iCloud Mail: app-specific password from Apple ID. Generic IMAP: standard credentials over RFC 3501. Wizard handles per-account throttling backoff, retry logic, and MIME conversion in-process. Server-tree jobs ingest per-account credentials from CSV mapping file.
Does the converter handle CalDAV calendars and CardDAV contacts too?
Yes. CommuniGate Pro stores four data types in unified archive structure; the wizard extracts each within one job. Mail: writes to PST, MBOX, EML, cloud destinations. CalDAV calendars: export as standard ICS files importable to Microsoft 365, Google Calendar, Apple Calendar, Thunderbird Lightning. CardDAV contacts: export as vCard 3.0 or 4.0 importable to any modern address book. File attachments: original MIME type and filename intact. Field-level extraction additionally produces deduplicated CSV of email addresses and regex-matched phone numbers from message bodies.
How many CommuniGate items can I convert with the free trial?
Twenty-five items per source folder write to the destination, additional items skip with notification. The cap operates at the writer stage only; loading the .macntl source tree, browsing the verification pane, applying filter rules, and configuring output run unrestricted under trial. The cap design lets operators validate version detection (per-file CGP 5.0 through 6.2), four-component extraction (mail, CalDAV, CardDAV, attachments), and destination compatibility against specific source data prior to licensing. Licensed edition at $49 removes the cap.
Does the CommuniGate converter run on Windows 11 Server editions?
Yes. Single installer covers Windows 11, 10, 8.1, 8, 7 client SKUs and Windows Server 2022, 2019, 2016, 2012 R2, 2008 server SKUs. Both 32-bit and 64-bit binaries package together; the installer detects host architecture at install time. Standard user privileges suffice for both install and runtime. Sole runtime dependency is .NET Framework 4.5+, preinstalled on every supported Windows release. The wizard does not require network access to the original CommuniGate Pro host. Source archives reach the wizard via standard filesystem paths: SMB-mounted server volumes, USB media, mounted forensic disk images.
How long does it take to migrate a 500-user CommuniGate server?
Reference benchmark: 500 user accounts, 50 GB total .macntl source set with mixed mail and calendar content, target Microsoft 365. Total wall-clock runtime 8 to 14 hours on standard SSD-equipped Windows workstation with typical business broadband connection. Throughput factors: source storage type (SSD > HDD > network share), destination type (local PST writer is fastest, OAuth cloud delivery is rate-limit bound), per-account complexity (heavy attachments and large CalDAV histories add overhead). Memory footprint stays flat across account count.
Does CommuniGate data leave my machine during migration?
Local-only by default. .macntl files, parsed mail content, CalDAV calendars, CardDAV contacts, attachment payloads and conversion output never transit PCDOTS infrastructure. Network egress occurs only when operator selects a cloud destination (Microsoft 365, Google Workspace, Yahoo, iCloud, generic IMAP); cloud traffic flows operator-host to destination-provider directly without intermediate routing. Compatible with HIPAA Privacy Rule local-processing requirements, GDPR data sovereignty rules, and forensic chain-of-custody handling. Diagnostic log writes to user-writable paths only.
What is the difference between the trial and full edition?
Both editions share the same binary, the same .macntl parser, the same writer set, the same verification pane, the same per-file version detection across CGP 5.0 through 6.2. The trial caps each source folder at 25 items at write time. The licensed edition ($49 one-time per-workstation, perpetual, no subscription) removes the cap, routes support requests to engineers experienced with CGP retirement engagements, and ships lifetime updates. Thirty-day refund window applies if the wizard fails on a documented capability against the operator's source data.
Can I run the CommuniGate converter on macOS or Linux?
No. The wizard binary targets Windows .NET runtime exclusively. The .macntl parser library has a hard dependency on .NET Framework that does not run natively on macOS or Linux. Operational workaround: a Windows virtual machine (Parallels Desktop, VMware Fusion, UTM on Apple Silicon) or Windows partition (Boot Camp on Intel Macs) hosts the wizard normally. Note that the source-server platform is irrelevant: .macntl files are platform-independent on disk, produced byte-identically regardless of whether the original CGP host ran on FreeBSD, Linux, macOS or Windows.
My CommuniGate archive is encrypted or password-protected. Will the converter handle it?
CommuniGate Pro encryption operates at the transport layer (SSL/TLS for SMTP, IMAP, HTTP) rather than at the .macntl archive level, so most archives are not encrypted at rest. For deployments using disk-level encryption (LUKS on Linux, BitLocker on Windows, FileVault on macOS hosts), decrypt the source filesystem first, then point the wizard at the mounted plaintext .macntl files. For S/MIME or PGP-encrypted message payloads within the archive, the wizard carries the encrypted payload through the conversion where the destination format supports encrypted MIME. Decryption requires the recipient certificate or PGP key, supplied through the conversion dialog.
Customer Stories
Customer CommuniGate Conversion Reports
Three production CommuniGate Pro conversion reports below covering enterprise server retirement, forensic disk image examination, and healthcare cloud cutover with full four-component extraction. Reviewer identities verified by the hosting platform (G2, Capterra, Trustpilot).
G2 Reviews
4.7
412 reviews
Capterra
4.6
287 reviews
Trustpilot
4.6
521 reviews
Software Suggest
4.5
188 reviews
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"Processed 1,200 .macntl archives in a weekend window."
Production scope: CommuniGate Pro 5.4 server with 1,200 user accounts, retiring to Microsoft 365. We pointed the wizard at the .macntl archive set extracted from our last backup tape, configured CSV-based per-account OAuth credentials, and ran the job over a Friday-to-Monday window. Mail, CalDAV calendars, and CardDAV contacts all arrived intact. Per-account diagnostic log satisfied the compliance team's audit requirements.
EML to PSTFolder hierarchy intactBulk conversion
GF
Genelia FernandesDirector of IT Operations · California, United States
Verified review · G2
.macntl read from forensic disk image
Engagement scope: forensic disk image of a seized CGP 6.1 host received from the investigating authority. Standard generic mail tools failed against the .macntl archive set. The PCDOTS wizard parsed the archives in append-only read mode, exposed the full message tree including deleted-but-not-purged content visible in raw-bytes view, and produced a PDF/A subset for the legal team with chain-of-custody hash log intact.
Forensic disk imagePDF/A output
KJ
Kylie JohnForensic Mail Examiner · Sydney, Australia
Verified · Capterra
Four-component extraction at 380 accounts
Engagement scope: 380-account CGP 6.0 to Google Workspace cutover for a healthcare organization. Comparison with three competing tools: only PCDOTS handled the four CGP component types in one job. Mail wrote via Gmail OAuth, CalDAV calendars exported as ICS for Google Calendar import, CardDAV contacts as vCard 3.0 for Google Contacts import, attachments retained inline. End-user reported no visible disruption.
Convert Your CommuniGate Pro Archives. Trial Edition, 25 Items Per Folder, No Card Required.
Download PCDOTS CommuniGate Converter, migrate up to 25 items per folder and verify the wizard handles your exact CommuniGate Pro version structure. Upgrade only when you are satisfied with the result.
