> Anyway, the status code 4.4.2 is telling us it should have been
> deferred. It seems like hotmail doesn't like to have any messages in
> its queue :) Are you sure this isn't a deferral notice? I guess since
> it says "Failure" in the Subject we have to assume it's not.
No - they are indeed going back as bounces to the user. The nice thing is
that prontomail/commtouch doesn't include the bounced message - just a
failure notice so people sending us mail "lose" their mail (no sent folder
either - brilliant!)
> X.4.2 Bad connection
>
> The outbound connection was established, but was otherwise
> unable to complete the message transaction, either because
> of time-out, or inadequate connection quality. This is
> useful only as a persistent transient error.
Thanks for the above!
>
> > The odd thing about this is that we have two mail servers - one in New
> > Jersey on an occasionally unstable link and one in California at Above
> > which is always online and both trigger this error (randomly).
>
> Interesting, but I can only find one MX record in the DNS for vfive.com.
>
> $ host -t mx vfive.com
> vfive.com MX 10 bmw.vfive.com
Exactly - the second mail server in California however serves a different
domain ddstorage.com which exhibits the same behavior (which is why I
posted here, seeing as the only obvious connection between the two is they
both run Qmail and Ezmlm). I'm pager notified if that mail servers' SMTP
service goes offline for more than 1 minute so I'm confident it is online
and reachable.
Chalk it up to large email providers being dumb? What can we do to
prevent this - backup MX records possibly?
Thanks for your help Aaron,
Brian
(I accidentally posted this to ezmlm@list rather than qmail@list, my
apologies!)