I have not made any changes (intentionally) to mailman in many months but suddenly mail from the list has listname-bounces as the from header rather then the original poster. I have to assume that one of my CentOS updates changed something, although I don't recall seeing any automatic updates to mailman. I can't seem to find where to set that header. In any case wherever I set it before must have been wrong for an update to overwrite it (assuming that is what caused this).
Also, I'm guessing this is related, bounced messages are now being handled as uncaught bounces. The attached message was received as a bounce, but either the bounce format was not recognized, or no member addresses could be extracted from it. This mailing list has been configured to send all unrecognized bounce messages to the list administrator(s). This is in spite of the fact that the reason for the bounce and the bad address are quite clear in the bounced message (sanitized). Sorry, we were unable to deliver your message to the following address. <******@aol.com>: Remote host said: 550 5.1.1 <*******@aol.com>: Recipient address rejected: aol.com [RCPT_TO] If the reason is because that address is not a recognized member address, then how did it get sent there in the first place? The content was indeed a list message. Can someone help sort out what is wrong and how to prevent it in the future? Thanks.
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