Mailing List Bounce Problems
Hey everyone. The mailing list archive issue that I was inquiring about is a pretty low-volume list. When looking into the archive problem, i saw there were some messages listed in /var/lib/mailman/logs/post that I never received. When looking at the member list, most of my list members were no longer receiving emails due to excessive bounces. I have it set to notify the admin (my gmail account) when a user is disabled, but I've never received a notification. I enabled notification when a message I send to the list is sent out, and I receive that notification, but nobody receives the message. Admin emails from mailman go through just fine, but any message posted to the list does not. I have an IMAP email account on the same server which hosts the mailman instance, and it seems to get all my test messages that I post just fine, but all yahoo, windstream, gmail, etc get bounced.
an example line from the /var/log/mail.info file is:
Sep 10 12:49:21 bunsen postfix/smtp[4616]: 0DF621C375: to=web-p6036h@mail-tester.com, relay=mail-tester.com[94.23.206.89]:25, delay=2.6, delays=0.03/0.07/0.86/1.6, dsn=5.0.0, status=bounced (host mail-tester.com[94.23.206.89] said: 550 Message Contains SUSPECT Content :: Please contact abuse@fortressitx.com for further information. (in reply to end of DATA command))
I've been using the services at mail-tester.com to ensure that my domain keys, DMARC, and SPF are all set well. You can see those results here (http://www.mail-tester.com/web-p6036H).
I deleted the entire mailing list after exporting the 114 email address, and remade the list, and it behaves the same. The odd thing is, I have another mailing list on the same server with only 6 members, and it seems to be working fine!
Any clue where to look? I've contacted abuse@fortressitx.com and received no reply.
Thanks, Kevin Nowaczyk
On 09/10/2015 08:19 AM, Kevin Nowaczyk via Mailman-Users wrote:
I have it set to notify the admin (my gmail account) when a user is disabled, but I've never received a notification.
Was bounce_notify_owner_on_disable set to yes before the member's delivery was disabled? If so, what does your postfix log say about the notification mail to you?
I enabled notification when a message I send to the list is sent out, and I receive that notification, but nobody receives the message.
And what does postfix say about those deliveries, assuming the member's delivery was enabled.
Note that if you are posting from Yahoo and you don't have DMARC mitigations enabled for your list, that is likely a reason. See the wiki at http://wiki.list.org/DEV/DMARC and http://wiki.list.org/x/17891458.
Admin emails from mailman go through just fine, but any message posted to the list does not. I have an IMAP email account on the same server which hosts the mailman instance, and it seems to get all my test messages that I post just fine, but all yahoo, windstream, gmail, etc get bounced.
an example line from the /var/log/mail.info file is:
Sep 10 12:49:21 bunsen postfix/smtp[4616]: 0DF621C375: to=web-p6036h@mail-tester.com, relay=mail-tester.com[94.23.206.89]:25, delay=2.6, delays=0.03/0.07/0.86/1.6, dsn=5.0.0, status=bounced (host mail-tester.com[94.23.206.89] said: 550 Message Contains SUSPECT Content :: Please contact abuse@fortressitx.com for further information. (in reply to end of DATA command))
So the MX at mail-tester.com is not accepting the mail because they say the Message Contains SUSPECT Content. Only they can tell you why.
But is this a list message? If so, why is it being relayed to mail-tester.com. What are some log messages for mail to list members that is undeliverable?.
-- Mark Sapiro mark@msapiro.net The highway is for gamblers, San Francisco Bay Area, California better use your sense - B. Dylan
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Kevin Nowaczyk -
Mark Sapiro