Browse file extensions by file type category:
Email related data file type extensions
(36 file extension database entries)
File extension used by mail applications and mail clients to storage e-mail messages and other data related to internet mail communication
Email related data file extension list
File extension used by mail applications and mail clients to storage e-mail messages and other data related to internet mail communication.
This category contains file types related to internet mail communication and e-mail clients. E-mail data files are places where email applications store their data (email messages, personal folders, adress books etc.).
The most popular e-mail client is Microsoft Office Outlook - a part of Microsoft Office suite and it can import many of email data files from another email applications to work with them. Native file format of Microsoft Office Outlook data file is Personal folder file (pst file suffix).
Very popular free and simple email client under Microsot Windows platform was Microsoft Outlook Express (dbx files), replaced by Windows Mail after release of Windows Vista and then replaced by Windows Live Mail (using eml files to store mail data).
From non-Microsoft email clients is very popular open source client called Mozilla Thunderbird (stores data in MSF files).
Other often used clients are Pegasus Mail, The Bat! or Apple Mail (mbox, emlx) a native e-mail client for MAC OS X platform.
| Extension | File type description |
| Outlook Express backup | |
| FoxMail e-mail box | |
| Open Text FirstClass file | |
| Pegasus Mail new mail message | |
| Kerio WinRoute Firewall electronic mail file | |
| Outlook Express e-mail folder | |
| Email message | |
| Apple Mail email message | |
| PocoMail index file | |
| Microsoft Outlook Express index file | |
| PocoMail index file | |
| Forte Agent file | |
| MSN Mail file | |
| Microsoft Mail mailbag file | |
| Mailbag Assistant e-mail archive | |
| Mail mailbox file | |
| Opera mailbox file | |
| MBX Unix mail folder | |
| Eudora mailbox file | |
| PocoMail mailbox file | |
| Mime HTML (MHTML) file | |
| The Bat! file | |
| Mozilla Thunderbird mail summary file | |
| Microsoft Exchange mail document | |
| PMMail 2000 e-mail message file | |
| PMMail/2 e-mail message file | |
| Internet News Message | |
| Pegasus Mail message folder index file | |
| Pegasus Mail mail message folder | |
| Pegasus Mail outgoing message | |
| E-mail Examiner file | |
| Microsoft Office Outlook personal folder file | |
| The Bat! e-mail hives | |
| Eudora table of contents | |
| Microsoft Office Outlook file | |
| ZoneAlarm MailSafe file |
