We have sent out more than 150,000 mails with hundreds different
domains for this weekly delivery. Can you explain why it was running
ok last week and why it only happened to these two specific domains,
not anyone else?

If the cause indeed is (a) RFC 1047, is it possible to explain the
above?

Thanks

George Tsai

Juan Altmayer Pizzorno wrote:
>
> george tsai wrote:
>
> > I check into the logs for LSMTP and Listserv and the mail has been
> > delivered just once. I contact both domain mail administrators.
>
> RFC 1047 describes a problem inherent to SMTP which may have been
> the cause of the multiple deliveries.  Depending on what is being
> logged, you may not see each delivery attempt, but only the successful
> one.
>
> > It look like the problem is at destination end, not our end. Does any
> > one have any idea what had happened here?
>
> I see two possibilities:
>
>   (a) the RFC 1047 problem happened between LSMTP and the next hops, or
>   (b) the multiple deliveries were caused by local problems at the
>       destination end.
>
> If (a) was the case, then you can try to avoid the problem by raising
> the SMTP timeout interval (in LSMTP's SMTP settings).  If the problem
> repeats itself then maybe you should enable logging of outgoing
> connections (by creating a site definition).  Then you can see exactly
> what is going on.
>
> .. Juan