Having problems opening a P7M file?

We have programs that can open or convert your P7M files.

Opening P7M files

Did your computer fail to open a P7M file? We explain what P7M files are and recommend software that we know can open or convert your P7M files.

What is a P7M file?

Files that contain the .p7m file extension hold encrypted email messages. The P7M file format is a container format and the contents and the attachments of the encrypted email message are enveloped into the encrypted P7M file.

Oftentimes a user must have a private key installed into their email client in order to open the P7M files that they receive. The private key will match the message's public key so that the user can open the P7M file. This private key is static and does not change so that a user does not have to enter new information to open each P7M file they receive.

The P7M file format implements the Secure/Multipurpose Internet Mail Extension standard (S/MIME).

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About File Extension P7M

File.org aims to be the go-to resource for file type- and related software information. We spend countless hours researching various file formats and software that can open, convert, create or otherwise work with those files.

If you have additional information about the P7M file format or software that uses files with the P7M suffix, please do get in touch - we would love hearing from you.