.MAI File Extension

There is only one file type that uses the .MAI extension:

Microsoft Mail File

Microsoft Mail File
  • Developer Microsoft
  • Popularity
    3.3 (6 votes)
  • Category Data Files
  • Format N/A

Single mail file processed by Microsoft Mail, Microsoft's mail server program; contains actual message data and may be referenced by one or more mailbag record (.MBG) files.

Microsoft Mail was introduced in 1991 and has since been replaced by Microsoft Outlook.

Software's name License Platforms
Microsoft Mail Microsoft Mail Windows

Updated: August 2, 2020

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