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From: Charles Marcus (CMarcusMedia-Brokers.com)
Date: Thu Dec 05 2013 - 07:26:27 CST
On 2013-12-05 7:50 AM, Andreas Kasenides <andreascymail.eu> wrote:
> smtpd_client_restrictions =
> Obviously this rejects any requests where the DNS (forward or reverse)
> I am under increasing pressure to change this apparently because other
> email admins
> have their mail servers misconfigured resulting in "lost" emails. I
> believe this is
> in violation of RFC 5321 but correct me if I am wrong.
Do not use reject_unknown_client_hostname (I presume this is what you
It is well known to block legitimate mail.
Use reject_unknown_reverse_client_hostname instead, it is safe to use.
Also, postconf -n output is preferred to copy/pastes or manually typing
contents of $random_config_file...