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.P7M File Extension

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File TypeDigitally Encrypted Message

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Rare Uncommon Average Common Very Common
CategoryMisc Files


This file is saved in a binary format, which requires a specific program to read its contents.


Encrypted e-mail message in which the contents and attachments are enveloped in an smime.p7m file; may require a private key matching the message's public key to open the document.

Program(s) that open .P7M files
Microsoft Windows LogoWindows
Cryptigo p7mViewer
Mac OS X LogoMac
Apple Keychain Access
Updated 8/6/2015