In real live you expect that the person opposite you is using 'correct' name when introducing ... ... IMHO the same should be with MailServer and 'HELO' when using 'helo=<mx.windowmaker.org>' there should be a vaild DNS record and valid reverse record.
See:
Aug 8 15:15:54 chaos postfix/smtpd[30595]: connect from
jaqque.xen.prgmr.com[64.62.173.38] Aug 8 15:15:54 chaos
postfix/smtpd[30595]: NOQUEUE: reject: RCPT from
jaqque.xen.prgmr.com[64.62.173.38]: 550 5.7.1 <mx.windowmaker.org>: Helo
command rejected: Host not found;
from=<wmaker-dev-ign...@lists.windowmaker.org>
to=<ch...@computersalat.de> proto=ESMTP helo=<mx.windowmaker.org>
And same is for IPv6:
Aug 8 15:29:58 chaos postfix/smtpd[30669]: connect from
unknown[2001:470:1:41:a800:ff:fe59:ad26] Aug 8 15:29:58 chaos
postfix/smtpd[30669]: NOQUEUE: reject: RCPT from
unknown[2001:470:1:41:a800:ff:fe59:ad26]: 550 5.7.1 Client host
rejected: cannot find your hostname, [2001:470:1:41:a800:ff:fe59:ad26];
from=<wmaker-dev-bounce-585-3b3cb91547090ee3b507fa2c31cf2...@lists.windowmaker.org>
to=<ch...@computersalat.de> proto=ESMTP helo=<mx.windowmaker.org> Aug 8
15:29:58 chaos postfix/smtpd[30669]: disconnect from
unknown[2001:470:1:41:a800:ff:fe59:ad26]
Can you please add a valid DNS record for 'mx.windowmaker.org'.
Thank you
--
Christian
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