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.MAILHOST File Extension


File Type MSN Mailhost Settings File
File Format File
Common? No
File Description Stores preferences for the e-mail server used by MSN; installed with MSN software and required for MSN to check and send e-mail; typically named "MSN#.mailhost."

If the Mailhost file is corrupt or missing, the MSN software may display a "Mailhost File" error; to recover the Mailhost file, first select "Run..." from the Windows Start menu; then type the following in the text box:

regsvr32 c:\progra~1\msn\msncorefiles\mailui.dll

This should restore the Mailhost file and allow MSN to communicate with the mail server again.

Also see the related .DOWNLOADHOST entry.
Program(s) that open mailhost files Windows: Microsoft MSN software

Information from FileInfo.com - The File Extensions Resource.
http://www.fileinfo.com/extension/mailhost