it does not accept mails from postmaster:
NOQUEUE: milter-reject: MAIL from unknown[168.167.x.x]: 550 5.7.1 Use a valid email according RFC 5321/5322; from=<> proto=ESMTP helo=
as far as I know postmaster's address is in form "postmaster@yourdomain", which would be accepted. According the log line "from" address is empty ("from=<>"). Maybe is this the problem?
Hello,
it does not accept mails from postmaster: NOQUEUE: milter-reject: MAIL from unknown[168.167.x.x]: 550 5.7.1 Use a valid email according RFC 5321/5322; from=<> proto=ESMTP helo=