On Sun, 2023-02-26 at 19:43 +0000, Denny Watson via mailop wrote: > This appears to be a specially built MTA, and with the (probable) > consent of its users, has policy in place to not resend after 4xx under > specific conditions. I.e. the sending MTA is interpreting specific 4xx > responses (and more likely the text) to mean a permanent failure. > > I do not see a problem with elevating a 4xx to mean 5xx where the users > of the system understand the policy as it does not appear to impact the > receiving system.
This is not whatever subtle and nuanced situation you are imagining though. The users don't know, and the response code/text makes no difference. _______________________________________________ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop
