File Extension Library


.MMDF File Extension

  • Developer by: Canonical Ltd.
  • Category: Email related data Files

What are .MMDF files and how to open them?

Can't open .MMDF file? Are you wondering what it contains? On our site we will explain to you what this file is, what it is used for and what software opens the .MMDF file.

What is a .MMDF file extension?

.MMDF file extension is created by Canonical Ltd.. .MMDF has been classified as Email related data Files.

.MMDF is Multi-channel Memorandum Distribution Facility mailbox format

The mmdf file extension is used for Multi-channel Memorandum Distribution Facility mailbox format.

The mmdf files are used by some email programs for Ubuntu system.

An MMDF mailbox is a text file containing an arbitrary number of e-mail messages.


How to open:

Probably not meant to be accessed by the user.

How to convert:

Probably cannot be converted to anything else.

How to fix problems with .MMDF files

  1. You need to update the application that you normally use to open .MMDF files. Only the latest version of the software supports the current .MMDF file format
  2. You need to check the .MMDF file for viruses. To do this, you need to scan it with a popular antivirus (Norton, Nod32, Kaspersky, Dr.Web, etc.)