Hi, I tried different senders and I always receive the same error. More of this, if I change back:
#smtp inet n - n - - smtpd smtp inet n - - - - smtpd -o content_filter=spamassassin to smtp inet n - n - - smtpd #smtp inet n - - - - smtpd -o content_filter=spamassassin all comes back to working well. So, I suppose a SpamAssassin related problem. Can I provide other useful information? Thank you, —Carlo > On 02 Sep 2015, at 11:43, Kevin A. McGrail <kmcgr...@pccc.com> wrote: > > On 9/2/2015 5:34 AM, Carlo Manuali wrote: >> NOQUEUE: reject: RCPT from unknown Sender address rejected: Domain not found > Are you sure the sender domain is legit and doesn't have a misspelling? > > Is DNS on the box working? I would conjecture this is much earlier in the > discussion phase with postfix and spamassassin isn't even involved in this > issue. > > regards, > KAM