.P7S File Extension

.P7S File Extension

File Type

Digitally Signed Email Message

Developer N/A
3.2  |  208 Votes
Category Text Files
Format N/A

What is a P7S file?

A P7S file is an email message that includes a digital signature. It can be used for sending secure emails that can only be viewed by the intended recipient. P7S files verify that the email is from who it claims to be from and that the email has not been modified in transit.

More Information

Most email applications, such as Microsoft Outlook, Apple Mail, and Mozilla Thunderbird, support digital signatures. However, if an email program does not handle digital signatures, a P7S file may appear as an attachment (smime.p7s) to the email message.

NOTE: Email programs that use P7S files use PKCS (Public-Key Cryptography Standard) #7 to sign email messages.

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Programs that open P7S files

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Updated October 26, 2016

Verified by FileInfo.com

The FileInfo.com team has independently researched the Digitally Signed Email Message file format and Mac, Windows, and Linux apps listed on this page. Our goal is 100% accuracy and we only publish information about file types that we have verified.

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