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tickets #152071

open

mx2::postfix unknown[2a03:7520:4c68::29] - why does that address not resolve properly?

Added by pjessen 5 months ago. Updated 5 months ago.

Status:
In Progress
Priority:
High
Assignee:
crameleon
Category:
DNS
Target version:
-
Start date:
2023-12-05
Due date:
% Done:

0%

Estimated time:

Description

This is very minor, but still.
In mx2::postfix, 2a03:7520:4c68::29 does not seem to resolve. Postfix does a reverse lookup, then a forward lookup.
Using host, it works fine:

mx2 (mx2.o.o):~ # host 2a03:7520:4c68::29
9.2.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.8.6.c.4.0.2.5.7.3.0.a.2.ip6.arpa domain name pointer news.enidan.com.
mx2 (mx2.o.o):~ # host news.enidan.com.
news.enidan.com has address 185.85.248.29
news.enidan.com has IPv6 address 2a03:7520:4c68::29

From /var/log/mail :

2023-12-05T10:00:09.892791+00:00 mx2 postfix/smtpd[21240]: connect from unknown[2a03:7520:4c68::29]
2023-12-05T10:00:09.929884+00:00 mx2 postgrey[1381]: action=greylist, reason=new, client_name=unknown, client_address=2a03:7520:4c68::29, sender=per@opensuse.org, recipient=users@lists.opensuse.org
2023-12-05T10:00:09.930109+00:00 mx2 postfix/smtpd[21240]: NOQUEUE: reject: RCPT from unknown[2a03:7520:4c68::29]: 450 4.2.0 <unknown[2a03:7520:4c68::29]>: Client host rejected: Service temporarily unavailable, please retry later; from=<per@opensuse.org> to=<users@lists.opensuse.org> proto=ESMTP helo=<news.enidan.com>
2023-12-05T10:00:09.945639+00:00 mx2 postfix/smtpd[21240]: disconnect from unknown[2a03:7520:4c68::29] ehlo=1 mail=1 rcpt=0/1 data=0/1 rset=1 quit=1 commands=4/6
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