Am 27.08.2012 16:30, schrieb Ilja Beeskow: > Am 27.08.2012 13:17, schrieb Jan Geep: >> [...] until recently people have started >> receiving spam email that appear to be sent from my domain. >> >> From: myn...@example.com >> To: myn...@example.com >> Subject: Fwd: Re: Scan from a Hewlett-Packard ScanJet 1234 >> >> But the return path is along the lines of: >> >> Return-Path: <somen...@spammer.com> > > smtpd_recipient_restrictions = permit_sasl_authenticated, > permit_mynetworks,..., check_sender_access > hash:/etc/postfix/not_our_domain_as_sender > > with /etc/postfix/not_our_domain_as_sender > > example.com REJECT Sorry, sender not permitted!
FROM-header is not relevant for the SMTP protocol
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