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Version 9.2 | Windows 11, Windows 10, Windows 8 and Windows 7
Pegasus Mail, also known as PMAIL, is one of the oldest email programs for Windows. David Harris first released it in 1990. It saves your mail in its own file types that no other program can open. A PMM file holds a whole mail folder. A CNM file is a single saved message. A PMI file is the index that keeps the folder in order.
Here is the catch. Pegasus Mail has no built in way to export your mail. No other email app reads these files either. So when you move to Outlook, Thunderbird or Gmail, your old Pegasus mail gets left behind. This converter is the bridge. It reads PMM, CNM and PMI files straight from disk and writes them into formats every modern app understands.
Want to look inside a file before you convert it? The free online Pegasus Mail viewer opens PMM and CNM files right in your browser, so you can check the contents first.
The three Pegasus file types
A full mail folder, like your Inbox or Sent items, saved as one file
One single email message saved on its own
The index file that keeps a folder in the right order
Pick the format that matches where your mail is headed next. One tool covers every common target.
Pegasus to PST
Move your mail into Outlook. The PST file opens in Outlook 2021 back to 2007, so your old emails sit right next to your new ones.
Pegasus to EML and MSG
Save each email as its own file. EML opens in Thunderbird, Windows Mail and more. MSG opens straight in Outlook.
Pegasus to PDF
Turn emails into PDF files you can print, share or keep for the record. Each message stays neat and easy to read.
Pegasus to MBOX
Send your mail to Thunderbird, Apple Mail or The Bat. MBOX is the shared format these apps all read.
Pegasus to HTML
Save emails as web pages that open in any browser. Handy for sharing a thread with someone who has no email app.
Pegasus to CSV
Pull email details into a spreadsheet. Good for making a list of messages with dates, senders and subjects.
No Pegasus Mail Needed
The tool reads PMM, CNM and PMI files with its own engine. You do not need Pegasus Mail on the PC, which helps a lot when the old program is long gone.
Two Ways to Load Files
Let the tool find your Pegasus mail on its own. You can also point it at a folder yourself. Either way it picks up every file inside.
Folder Tree Stays the Same
Your inbox, sent items and every subfolder come out in the same order they went in. Nothing gets jumbled or mixed up.
Find Any Email Fast
Search by sender, subject or date to pull out just the emails you want. No need to scroll through years of mail by hand.
Attachments Come Too
Photos, documents and files stuck to your emails all carry over. Inline images and email headers stay in place as well.
Name Files Your Way
Choose how saved emails are named, by date, subject or sender. Makes the finished files easy to sort and find later.
No tech skills needed. Load, pick a format, and save.
Start the tool and let it find your Pegasus mail on its own. You can also browse to the folder that holds your PMM, CNM and PMI files. Every file inside gets loaded at once.
See your emails in a folder tree with dates and senders. Then choose where they should go, like PST for Outlook or MBOX for Thunderbird.
Pick a save spot and press convert. The tool writes your new files with folders, dates and attachments all kept in place.
Pegasus Mail never shipped an export button. Without a tool like this, moving old mail means copying messages one by one. The folder order and attachments rarely survive.
Offices Moving to Outlook
Businesses that ran Pegasus Mail for years can move every mailbox into Outlook PST in one batch, with no email left behind.
IT Teams
Tech staff clearing out old PCs can rescue Pegasus mail fast, then hand it back to staff in a format they already use.
Legal and Records Work
Turn old Pegasus emails into PDF for case files or long term records, with dates and senders kept exactly as they were.
Home Users
Anyone with years of personal mail in an old Pegasus setup can move it to Gmail or Outlook and keep every message.
Only need to read a file, not convert it? Open it free in the online Pegasus Mail viewer.
"We ran Pegasus Mail in our office since the late 90s. Moving to Outlook felt impossible until this tool. It pulled ten years of mail into PST folders in one afternoon."
"The old PC had no Pegasus Mail left on it, just a folder of PMM files. This still read every one of them. The folder tree came out exactly right."
"I saved my father's old emails as PDF so the whole family could keep them. Simple to use and the attachments all came through."
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