[Spambayes] mailing list signature in attachment

[Amedee Van Gasse]

Hello,

Very often I see the standard mailman signature as an attachment called 
Part 1.2; and not inline. This is annoying because that way it is 
confusing to see which emails really have attachments.

Who/what causes this problem?
* The person who originally sent the email?
* The mailman software used by the spambayes mailing list?
* My mail setup?  (postfix --> procmail --> dovecot --> thunderbird)

-- 
Amedee Van Gasse