Am 06.02.2013 23:02, schrieb Reindl Harald: > > > Am 06.02.2013 22:57, schrieb Daniel L. Miller: > >> Otherwise when they send a message to "u...@domian.com", the client hands it >> off - the user thinks the message >> actually sent when in reality they will get a rejection message some time >> later > > your idea is completly broken > email is NOT instant message > > it is VERY common that some destination is not available due network > problems between your server and the final one or overload and that > is why 4xx was invented > > typically a mail has up to 5 days to reach the destination > maximal_queue_lifetime = 5d > > and no, you do your users NOT a favour by instantly give > them an error back because temporary errors - if i would > not be my own mailadmin and my ISP would force such a setup > i would like to have my money back to say it clear
BTW: how do you imagine your idea of "immediate feedback" in the case of multi RCPT messages where one out of ten RCPT have a temporary error? * give no feedback and skip RCPT verification * give back error to the client because 10% failed * how do you imageine the client should handle this * how should different clients handle this
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