Information about the .msf (msf) file type

This is one of two possibilities that we have on file for the .msf file extension, follow this link to view both possibilities.

Below is all the information we have available on file about the .msf (msf) file type.

Thunderbird Mail Summary file. Also known as a Thunderbird email index file.

The .msf file is a "mail summary file". It does not contain the body of email but indexes into a second file (with no file extension but which should be located in the same folder) that contains the body of the emails.

The following link provides further information related to the .msf file extension:

Where this is available we would like to include file format information on .msf files, as well as information on how to view or open files of type .msf. If you know of any information which we have missed then please let us know.