The software is available at no cost and comes with the necessary plugins for reading P7M files.

You can download a sponsored version of Eudora from the relevant website. This program is an email application which is offered in both Windows and Mac versions. You can also open and view S/MIME P7M messages using Qualcomm Eudora with the Cryptigo S/MIME plugin. The trial license is for 30 days and includes access to detailed online help. This program will display the content in S/MIME P7M files and is capable of reading signed and encrypted messages. If you use the Windows operating system, you can open P7M S/MIME signature files using Cryptigo P7M Viewer, which is available in a trial version from the Cryptigo website. If a P7M file is an S/MIME signature file, then you will need a program that is capable of viewing this format. If you cannot open the file using this method, there are a few other methods you can apply to open and view it. If you are unsure of the P7M file type, you can try double clicking on the file to see if it opens in a default application you have installed on your PC. SecureSoft also provides time stamping, which seals data objects and is used to protect intellectual property. The digital certificates provide a Public Key Infrastructure (PHI) for encrypting documents. The program is capable of adding digital signatures to multiple files in a variety of formats, including PDF, XML, DOC and DOCX, XLS and XLSX, P7S, and many other formats.

Secure Soft is a signing software program that creates digital signatures, time stamping, and digital signature certificates. P7M files related to SecureSoft are used to create an encrypted file format. The services include authentication, digital signatures, encryption, and protection of the message data. In this case P7M files follow the popular cryptographic services for securing email messages. S/MIME stands for Secure/Multipurpose Internet Mail Extension and is a signature file that provides a way to send and receive secure data when using an email client.

P7M file extension can be associated with two different file types which include the S/MIME signature file and the SecureSoft encrypted file.

P7m viewer for mac