On 27 Oct 2010, at 13:02, Tomasz Chmielewski wrote: > Is it somehow possible to make Postfix add a digital signature to outgoing > emails? > > Most likely Postfix itself can't do it, but maybe there is some filter > (similar to amavis, or dkimproxy) which can be used with Postfix, which lets > digitally sign email (i.e. if From: is X1, sign with key K1)?
That's a job for the MUA, not the MTA. There's no fraud-proof way for postfix to know who is sending the email. - Mark
