From: Seblu (mlseblu.net)
Date: Mon Aug 04 2008 - 20:22:45 CDT

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Hello,

i use postfix postfix 2.5.1 on an OpenBSD 4.3 and i have a stange
behaviour (for me) with DNS lookup in logs.

i've a local dns, which resolv 192.42.42.1 to toto.titi

# host 192.42.42.1
1.42.42.192.in-addr.arpa domain name pointer toto.titi.

but in postfix logs 192.42.42.1 is resolved with the real address
# cat /var/log/maillog
Aug 5 03:09:15 cerber postfix/smtpd[19639]: connect from
accessa.unine.ch[192.42.42.1]
Aug 5 03:09:15 cerber postfix/smtpd[19639]: 2EC80527BB:
client=accessa.unine.ch[192.42.42.1]
Aug 5 03:09:15 cerber postfix/cleanup[26056]: 2EC80527BB:
message-id=<20080805010915.2EC80527BBtoto.titi>
Aug 5 03:09:15 cerber postfix/smtpd[19639]: disconnect from
accessa.unine.ch[192.42.42.1]

i've try to change to set
smtp_host_lookup = native
lmtp_host_lookup = native
but this change nothing.

Postfix (smtpd) use a personal resolver ? This behaviour is normal ?
And can we change it ?

Regards,

--
Sébastien Luttringer
www.seblu.net

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