Re: Mailing-list DMARC changes?
Posted by MichaelAtOz on Oct 23, 2019; 2:57am
URL: https://support.nabble.com/Mailing-list-DMARC-changes-tp7604436p7604445.html
I was testing different Mailman DMARC settings & got it wrong when I reset them (on 21 Oct) , causing all emails to have a munged From: field. So disregard the "or, this thought just popped-up" bit of the OP, that was my misconfiguration.
Thus all users emails were 'From: joe-etc via discuss<discuss@lists.openscad.org> ' and hence got posted to the unregistered/non-member* user 'discuss@lists.openscad.org' on the Forum. So they were getting added to that user.
I fixed Mailman this morning, so non-munged peoples emails are posted under their registered user (matching real email address in Nabble), back to normal.
*I just checked permissions, seems the 'Create_topic' & 'Reply' now have 'Registered' unchecked (and 'Anyone' unchecked too, but 'Members' is checked), I don't recall unchecking 'Registered', but could have as a test to see if spammers had gone away.
So incomming emails to a matching Nabble user with membership only of 'Anyone' still get posted, even with permission 'Anyone' unchecked.
So I suspect that your change allowed the creation of user 'discuss@lists.openscad.org' on the Forum, and after that any DMARC munged emails got posted to that user. i.e incoming emails matching a Nabble 'member' email address got posted.
So I have now change that user's^ email to discuss at five432.one (one of my domains), to see what happens when another DMARC affected email (with discuss@lists.openscad.org) hits Nabble. They are not that common, I'll ask one to do a test post & see.
^ http://forum.openscad.org/template/NamlServlet.jtp?macro=user_nodes&user=1513
This however may be a work-around to the long standing DMARC problem, I could change that users email address back, and give it the right permissions, then munged emails do at least make it to the forum in some form. Previously they got lost to the ether (but made it to the mailing-lists users inbox), making it difficult to reply if you prefer the Forum.
Tho, the possible change I mentioned in the OP, re using 'Cc' would be the better way. There doesn't seem to be many existing good solutions to the yahoo problem...
URL: https://support.nabble.com/Mailing-list-DMARC-changes-tp7604436p7604445.html
Perhaps, after writing the below - yes there is a problem.
I was testing different Mailman DMARC settings & got it wrong when I reset them (on 21 Oct) , causing all emails to have a munged From: field. So disregard the "or, this thought just popped-up" bit of the OP, that was my misconfiguration.
Thus all users emails were 'From: joe-etc via discuss<discuss@lists.openscad.org> ' and hence got posted to the unregistered/non-member* user 'discuss@lists.openscad.org' on the Forum. So they were getting added to that user.
I fixed Mailman this morning, so non-munged peoples emails are posted under their registered user (matching real email address in Nabble), back to normal.
*I just checked permissions, seems the 'Create_topic' & 'Reply' now have 'Registered' unchecked (and 'Anyone' unchecked too, but 'Members' is checked), I don't recall unchecking 'Registered', but could have as a test to see if spammers had gone away.
So incomming emails to a matching Nabble user with membership only of 'Anyone' still get posted, even with permission 'Anyone' unchecked.
So I suspect that your change allowed the creation of user 'discuss@lists.openscad.org' on the Forum, and after that any DMARC munged emails got posted to that user. i.e incoming emails matching a Nabble 'member' email address got posted.
So I have now change that user's^ email to discuss at five432.one (one of my domains), to see what happens when another DMARC affected email (with discuss@lists.openscad.org) hits Nabble. They are not that common, I'll ask one to do a test post & see.
^ http://forum.openscad.org/template/NamlServlet.jtp?macro=user_nodes&user=1513
This however may be a work-around to the long standing DMARC problem, I could change that users email address back, and give it the right permissions, then munged emails do at least make it to the forum in some form. Previously they got lost to the ether (but made it to the mailing-lists users inbox), making it difficult to reply if you prefer the Forum.
Tho, the possible change I mentioned in the OP, re using 'Cc' would be the better way. There doesn't seem to be many existing good solutions to the yahoo problem...
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