On Fri, 30 Mar 2012, Ron White wrote:
I have a bit of brain freeze I could use a jab in the right direction with. If Exim tries to deliver a message to a remote server and gets a 5xx code back, say 550 no such user, am I right in thinking the message should fail right away with an NDR, not remain on the queue being re-tried?
Correct.
More sticky, if a remote server refuses connections from Exim - say it is firewalling off the connecting ip, should that fail at once or stay on the queue for x hours?
Stays in the queue.
I'm sure in the first case it should fail at once, and in the second retry as the connection error could be transient, but I'd like to know for sure before I start troubleshooting. Ron
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