On Fri, Nov 22, 2013 at 10:02:33AM +0100, Pavel Urban wrote:
> Nov 20 07:13:55 n2rhps87 postfix/smtp[10528]: 5BB06440329:
> to=<m...@orelio.cz>, relay=mailrelay.cms1[10.254.254.18]:25,
> delay=300, delays=0.07/0/0.01/300, dsn=5.5.0, status=bounced
> (Protocol error: host mailrelay.cms1[10.254.254.18] said:
> **********************220 ******** 421 Exceeded allowable connection
> time, disconnecting. (in reply to end of DATA command))
This entry has no "conn_use=<use_count>" component, so it was not
a cached connection on your end.
> I've tried to resolve it by adding
>
> smtp_connection_cache_on_demand = no
Thus though this would have helped if that were the problem, it
does not. The remote error message is misleading. The real problem
is that the remote end did not reply to "." in 300 seconds and then
dropped the connection. The protocol error is almost certainly on
their end. Looks a bit "pixy" to me...
--
Viktor.
