p7mViewer 4.5 displays the contents of smime.p7m files and other files with file extension p7m, encrypted or signed in the S/MIME standard. It gives easy access to encrypted or signed email messages in web-based mail clients, encrypted e-mail attachments, signed documents and secure file archives.

p7mTool 1.0  is a command line tool designed to ease creation of .p7m files both for secure emaling ( smime.p7m ) as for creating file archives or pkcs#7 enveloped documents.

Mime Viewer  displays structure and contents of files containg MIME data, for example .EML files generated by Outlook Express.

Eudora S/MIME Plugin enables Eudora users to send and receive S/MIME messages. With administrative tasks reduced to the minimum and the intuitive wizards' guidance, the plugin is easy to use even by an inexperienced user.