[Mailman-Users] List posts sent to AOL list subscribers bounce as undeliverable (v. 2.1.20)

[Woody Mon]

FYI, I'm just using a Yahoo email account (via web interface) to post to the Mailman-users list. I don't use this account for much anything else.

All posts to the list in question are moderated and almost all are sent from a Mozilla Thunderbird email client.

And almost all subscribers (including AOL subscribers) are set for digest mode.

In the list mail the from line always shows the listname at subdomain.domain1.org (not an individual email address or freemail domain)

How do I find these DMARC workarounds which you speak?

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On Fri, 12/4/15, John wrote:

 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.