File extension p7m is an encrypted type message of files.
What is the .P7M format
The P7M File is an encrypted message.
PKCS #7 MIME Message (RFC 2311 MIME)
S/MIME (Secure/Multipurpose Internet Mail Extensions) provides a consistent way to send and receive secure MIME data through files. Based on the popular Internet MIME standard, S/MIME provides the following cryptographic security services for electronic messaging applications: authentication, message integrity and non-repudiation of origin (using digital signatures) and privacy and data security (using encryption).
How to open p7m files
You can use the following free viewers online, software and programs to open the files.
- p7m viewer
- Cryptigo S/MIME Plugin,
- Cryptigo p7m Viewer for Eudora
- Apple Keychain access
This file is usually part of a file attachment in a mail message. You will need the private jey that matches the created public key of the original message.