Jeremy C. Reed wrote:
> From one account, I am unable to email to sourceforge mail accounts.
>
> I receive delayed bounce messages (from the remote server).
>
> When I connect manually and do a mail from, I receive (after about a
> minute delay):
>
> 451-Envelope sender verification failed
> 451 rejected: temporarily unable to verify envelope sender address (try
> again later) <reed@???>
>
> The sourceforge doc at
> http://sourceforge.net/docman/display_doc.php?docid=6747&group_id=1 sort
> of indicates that it may be a DNS issue.
>
> Anyways, what checks is Exim doing when it returns this exact message? (Or
> was that some custom configuration?)
>
> (The banner says it is some 3.31 derivative. And I did see a patch with
> this text, so maybe this isn't even "official" Exim.)
I'm not sure, but maybe SF is doing verification callouts.
Your server hangs for a long time if one tries to connect (could be an
DNS-issue on your side, or maybe you are using osirusoft-blockslist
(which are down ATM), so the connect takes too long, and the sf.net
server disconnects from your server, and defers, because of the timeout.
Try to remove the blacklists and check again, if this doesn't help, and
you still encounter the error in some hours, try to reach postmaster@???.
ciao
