On 22/03/2011 13:54, Olin Lathrop wrote:
> Never mind, it was on our end.  Something apparently reset a bunch of sta=
te
> on the mail machine yesterday morning.  Our internal SMTP and POP3 server=
s
> continued to function, but the outgoing SMTP server forgot its license an=
d a
> bunch of other settings.  Outgoing mail was getting stuck in a queue betw=
een
> the internal and outgoing servers.

Yes that can happen too. But Spam volumes between ISPs can be a cause.
--=20
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