Email encryption, plugins etc.

Been investigating various different encryption plugins for email clients and seeing how they interoperate. Yes, I know, some people do gardening or go for a walk on a Sunday afternoon, but …

Under investigation:

• Mutt, using GnuPG, under Linux (this is my ‘standard’ setup that I use all the time) – rock solid, stable, configurable;
• Mozilla Thunderbird, using GnuPG via the EnigMail plugin, both under Windows and under Linux;
• Interesting ‘alternative’ setup, KMail under Linux (uses GnuPG directly);
• Some other Windows-based email client with reasonable GnuPG or PGP support, probably Pegasus Mail with the QDPGP encryption plugin, although that seems to want to use PGP rather then GnuPG. Not going to test Outlook or Outlook Express anyway, because its encryption setup is rather non-standard.

I have tested all of the above, although in the case of KMail, only superficially. I plan to figure out how well the different setups work in different environments.