[Mailman-Users] Sent mail from server to subscribers doesn't arrive

[Mark Sapiro]

On 4/21/2013 4:11 AM, Joost Doesburg wrote:
> 
> However, when I try to send mail to the list, these messages don't arrive.
> I have setup several test accounts, and only the local account (on the
> server) seems to work, not the remote accounts which include a GMail
> account and an account for another domain not hosted on my server.
> 
> The Postfix log (/var/log/maillog) says it sends out the messages but they
> never arrive, not even in any spam mailbox. I wonder if there's still
> something wrong with my setup which has SMTP servers reject my mails
> without bounce:
> 
[...]
> Apr 21 12:17:28 joost-vps postfix/local[7343]: F251E2004BF:
> to=<chat at joost-vps.localdomain>, orig_to=<chat at cardiacs.nl>, relay=local,
> delay=0.3, delays=0.06/0.03/0/0.22, dsn=2.0.0, status=sent (delivered to
> command: /usr/lib/mailman/mail/mailman post chat)


This shows the successful delivery of your post to Mailman.


[...]
> Apr 21 12:17:29 joost-vps postfix/qmgr[3900]: 9132C2004FA: from=<
> chat-bounces at cardiacs.nl>, size=2994, nrcpt=1 (queue active)


9132C2004FA - SMTP transaction from Mailman to Postfix for 1 recipient.


[...]
> Apr 21 12:17:29 joost-vps postfix/qmgr[3900]: 978592004FD: from=<
> chat-bounces at cardiacs.nl>, size=2967, nrcpt=2 (queue active)


978592004FD - SMTP transaction from Mailman to Postfix for 2 recipients.


[...]
> Apr 21 12:17:29 joost-vps postfix/local[7343]: 978592004FD:
> to=<joost at joost-vps.localdomain>, relay=local, delay=0.04,
> delays=0.01/0/0/0.02, dsn=2.0.0, status=sent (delivered to mailbox)


978592004FD - delivered to <joost at joost-vps.localdomain> mailbox.


> Apr 21 12:17:29 joost-vps postfix/smtp[7345]: connect to
> gmail-smtp-in.l.google.com[2a00:1450:400c:c03::1a]:25: Network is
> unreachable
> Apr 21 12:17:29 joost-vps postfix/smtp[7346]: connect to
> mail1.transip.nl[2a01:7c8:eb::eb1]:25:
> Network is unreachable
> Apr 21 12:17:29 joost-vps postfix/smtp[7345]: 9132C2004FA: to=<
> tsubasa.jm at gmail.com>, relay=gmail-smtp-in.l.google.com[173.194.66.26]:25,
> delay=0.17, delays=0.02/0.06/0.04/0.05, dsn=2.0.0, status=sent (250 2.0.0
> OK 1366539449 k15si6403513wjq.192 - gsmtp)


9132C2004FA - delivered to gmail-smtp-in.l.google.com[173.194.66.26]:25
for <tsubasa.jm at gmail.com> after unsuccessfully trying an IPV6 MX
gmail-smtp-in.l.google.com[2a00:1450:400c:c03::1a]:25.

However, this is the poster's address so the message will be discarded
by gmail. See the FAQ at <http://wiki.list.org/x/2IA9>.


> Apr 21 12:17:45 joost-vps postfix/smtp[7346]: 978592004FD: to=<
> joost at sonogy.nl>, relay=mail1.transip.nl[95.170.72.4]:25, delay=16,
> delays=0.01/0.06/0.01/16, dsn=2.0.0, status=sent (250 2.0.0 Ok: queued as
> 32EB7235A84D)


978592004FD - delivered to mail1.transip.nl[95.170.72.4]:25 for
<joost at sonogy.nl> after unsuccessfully trying an IPV6 MX
mail1.transip.nl[2a01:7c8:eb::eb1]:25

Presumably, this is an unexplained non-receipt. The message was accepted
by the next hop, so it is apparently neither a Mailman nor a Postfix
issue per se.

ISPs tend to be secretive about why they discard mail and there's often
little you can do. <joost at sonogy.nl> can inquire of TransIP BV as to why
they aren't delivering this mail that he wants to receive, but that's
not likely to help much.

There are various things you need to do. You need to ensure your server
has full circle reverse DNS
<http://en.wikipedia.org/wiki/Forward-confirmed_reverse_DNS> for the IP
that is sending the mail. You may have IPV4 vs IPV6 issues here.

Also, can you send mail directly from this postfix to <joost at sonogy.nl>
without involving Mailman?


> Also the post and smtp log seem fine:
> 
> Apr 21 12:17:29 2013 (7332) post to chat from tsubasa.jm at gmail.com,
> size=2764, message-id=<CAD4hotnuSRasGJP2i7nCx5FiHRLF7RC7=
> RDb0++dDw4jd1X+zg at mail.gmail.com>, success
> 
> Apr 21 12:42:18 2013 (1297) post to chat from tsubasa.jm at gmail.com,
> size=2755, message-id=<
> CAD4hotkcFwtUBdvD9vPvJakGrK8xO0zijjDXz2dUsb6_TrpQxQ at mail.gmail.com>, success


I don't see any smtp log entries here.


> But the messages just don't arrive.


Also see <http://wiki.list.org/x/4oA9>.

-- 
Mark Sapiro <mark at msapiro.net>        The highway is for gamblers,
San Francisco Bay Area, California    better use your sense - B. Dylan