On 05.08.24 21:00, Joey J via Postfix-users wrote:
I'm getting rejections showing:
reject: RCPT from unknown[96.92.246.116]: 450 4.7.25 Client host rejected:
cannot find your hostname
But if I do an nslookup on the same box, it does resolve.
it does, but only reverse:
116.246.92.96.in-addr.arpa. 3600 IN PTR
96-92-246-116-static.hfc.comcastbusiness.net.
I thought this was purely if no reverse exists reject.
the resulting name 96-92-246-116-static.hfc.comcastbusiness.net. does not
resolve, which causes that error.
I have added this under:
smtpd_sender_restrictions
you apparently have reject_unknown_client_hostname which checks FCRDNS.
you can use reject_unknown_reverse_client_hostname instead, which only
checks for reverse DNS.
I personally check both.
--
Matus UHLAR - fantomas, uh...@fantomas.sk ; http://www.fantomas.sk/
Warning: I wish NOT to receive e-mail advertising to this address.
Varovanie: na tuto adresu chcem NEDOSTAVAT akukolvek reklamnu postu.
I intend to live forever - so far so good.
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