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I administer several computers that have Thunderbird installed. I know Thunderbird has an option to require all email to be encrypted. However, I would like a way to allow unencrypted email normally, but require encrypted email to certain contacts.

For example, if I email, Thunderbird should require encryption, but if I email Thunderbird would allow unencrypted emails.

Are there any settings or Add-ons that would give this functionality?


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2 Answers 2

up vote 1 down vote accepted

I use open-pgp on thunderbird. Theres a setting in there for per recipient rules. I think thats what you're after?

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That sounds like it might work. I will take a look. – Daniel Aug 24 '12 at 22:35
The OP seems to be asking about S/MIME encryption, not PGP/GPG. – MV. Aug 27 '12 at 23:57
I would still like a way to do this with S/MIME, however, your solution does solve my problem, so I will accept it. – Daniel Aug 31 '12 at 13:06

The add-on Security Settings from Address Book basically does what you described for S/MIME.

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