PGP/MIME standard

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PGP/MIME stands for Pretty Good Privacy/Multipurpose Internet Mail Extensions

The PGP/MIME standard provides secure messaging to conform to:

RFC 1991 PGP Message Exchange Formats

RFC 2015 MIME Security with Pretty Good Privacy (PGP)

RFC 2440 OpenPGP Message Format

RFC 3156 MIME Security with OpenPGP

With PGP/MIME encrypting and signing of your e-mails is easier and more flexible than ASCII armoured.

In The Bat! PGP/MIME is set as default, it will be used for signing/encrypting when:

a message includes attachments

a message is in HTML or Rich Text Format

a non-ASCII character set is used

the text contains lines longer than 76 characters

the text features lines beginning with "From"

the text contains lines with trailing spaces like the standard signature delimiter

Beware: To read encrypted messages the recipient needs to have OpenPGP installed, too!

Note: Some e-mail clients (i.e. Webmailers) may have trouble with PGP/MIME-signed messages. For those recpients not being able to read a signed message you can use the %NOPGPMIME macro in a template. You can also disable automatic signing and use the %PGPMIME macro in templates for people you want to send signed messages to.