Email clients (Thunderbird, Outlook, etc) can be set up to handle smime.
It's not a 'real' attachment like you might have an attached PDF, where you just open it in your PDF program. Probably just signed if you're able to read some of the contents. The email was either signed or encrypted and the email's contents are in the smime.p7m file. When writing a keygen, the author will identify. A keygen is made available through crack groups free to download. Keygen is a shortcut word for Key Generator. The word 'keygen' means a small program that can generate a cd key, activation number, license code, serial number, or registration number for a piece of software. Both the E-Mail message itself and anyattachments are added to the P7M envelope, which can only be opened by clientswith the appropriate key. P7M file extension is used to denote adigitally signed and encrypted E-Mail.
