Message delivery and Logs
Hi,
We have multiple lists set up with our Mailman host. We have had some delivery issues recently. Until a few weeks ago, we did not have DomainKeys or SPF records properly configured for our domain.
A few of the lists have been active for, I believe, 2 or so years; for this example, we will call one of these lists "LIST A". Messages sent to these lists seem to deliver fine. In October, we added 5 brand new lists. One of the new lists has had some real trouble getting the messages delivered. However, there are members of "LIST A" that are also member of the problem list, "LIST B". They receive messages from "LIST A" fine, but messages from "LIST B" never even seem to reach the front door. I spoke with one local postmaster, and he did not see the first message from "LIST B" in his logs anywhere.
I am a member of all of the lists, and I think I receive every single email. Even when others do not receive messages from "LIST B", I do. To the best of my knowledge, every single list is configured identically, except for its name.
Any ideas as to what could be causing it? I believe that members of LIST B who had been having issues have had their issues clear up after configuring the SPF records and what not properly.
Thanks, and hope that was not too confusing.
Ian
Ian Prietz wrote:
We have multiple lists set up with our Mailman host. We have had some delivery issues recently. Until a few weeks ago, we did not have DomainKeys or SPF records properly configured for our domain.
A few of the lists have been active for, I believe, 2 or so years; for this example, we will call one of these lists "LIST A". Messages sent to these lists seem to deliver fine. In October, we added 5 brand new lists. One of the new lists has had some real trouble getting the messages delivered. However, there are members of "LIST A" that are also member of the problem list, "LIST B". They receive messages from "LIST A" fine, but messages from "LIST B" never even seem to reach the front door. I spoke with one local postmaster, and he did not see the first message from "LIST B" in his logs anywhere.
Things like SPF and DomainKeys/DKIM tend to affect all mail from the server. It is unlikely that they would be related to an issue of a member receiving mail from one list and not another on the same server. Such an issue might possibly be related to a recipient's having list_a-bounces@example.com but not list_b-bounces@example.com in her address book.
What is in your server's MTA logs? Are the messages to LIST B recipients being sent and accepted by the respective recipient MX servers?
-- Mark Sapiro <mark@msapiro.net> The highway is for gamblers, San Francisco Bay Area, California better use your sense - B. Dylan
participants (2)
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Ian Prietz -
Mark Sapiro