[Dovecot] Dovecot Antispam Problem (Using mail sending backend)

[Johannes Berg]

> Actual sendmail only lets the trusted users send mail with a different "from" 
> than the user running the command. So if user "x" is trying to send something 
> but trying to say it is from user "y" (maybe postmaster), sendmail won't allow 
> it unless user "x" is in trusted users.

Hmm, mine doesn't check the "From:" header line but rather the envelope
sender which we don't set (so the local user should be used)

johannes
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