On 12/04/2015 02:40 PM, John Levine wrote: >> The issue is that list posts sent to AOL subscriber addresses are now >> bouncing as undeliverable with the bounce code: "521 >> 5.2.1 : AOL will not accept delivery of this message." > I see that you have a yahoo.com address. If there's a yahoo.com > address on the From: line of the list mail, AOL and Yahoo's well > documented abuse of DMARC will cause the failure you're seeing. > > If you're running a recent version of Mailman, there are some DMARC > workarounds you can use. Other than that, I'd find a different > address to mail from, not at Yahoo, not at AOL, and preferably not at > Gmail. > > R's, > John > ------------------------------------------------------ > Mailman-Users mailing list Mailman-Users@python.org > https://mail.python.org/mailman/listinfo/mailman-users > Mailman FAQ: http://wiki.list.org/x/AgA3 > Security Policy: http://wiki.list.org/x/QIA9 > Searchable Archives: http://www.mail-archive.com/mailman-users%40python.org/ > Unsubscribe: > https://mail.python.org/mailman/options/mailman-users/incoming-pythonlists%40rjl.com
Two things to look at: Enter the IP address of your server on the AOL IP reputation page. I don't know if it will give you anymore information than what you already have, but it's probably worth a try: https://postmaster.aol.com/ip-reputation I don't believe you mention anywhere whether there are any kind of DKIM signatures in your message or weather there is an SPF record for your sending domain. You could subscribe to your list from a gmail account, and then, on one of the lists postings, click "show original message" (in the GMAIL GUI) and look for gmail's results of the DKIM, SPF, and DMARC tests. If you use from_is_list, or for digests, it is best to have a valid DKIM signature. If you don't use from_is_list, then no signature is your best bet if mailman is adding footers. My sense is you stand the best chance of getting your message through if it has a valid DKIM signature. A bad DKIM signature will likely cause problems. I know that under some circumstances mailman strips dkim signatures, but it's best to look at headers to see what is actually happening. I realize you have no ability to change some of these things, but at least determining the cause of your problem will help to determine if you will be able to solve it or not. Natu ------------------------------------------------------ Mailman-Users mailing list Mailman-Users@python.org https://mail.python.org/mailman/listinfo/mailman-users Mailman FAQ: http://wiki.list.org/x/AgA3 Security Policy: http://wiki.list.org/x/QIA9 Searchable Archives: http://www.mail-archive.com/mailman-users%40python.org/ Unsubscribe: https://mail.python.org/mailman/options/mailman-users/archive%40jab.org