Victor.Duchovnimorganstanley.com
Date: Tue Apr 01 2003 - 14:31:33 CST

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> On Wednesday 31 December 1969 4:00 pm, Paul Tremblay wrote:
> > Postfix appears to suddenly have quit on me.
> >
> > I have a standalone box. I am running Linux, Mandrake 8.1.I am a single
> > user with absolutely no connection to any networks.
> >
> > I have been sending emails with no problem whatsoever. However, suddenly
> > messages got stuck in my mailque. I get this error message:
> >
> > C6D703492E 546 Tue Apr 1 14:15:43 paullocaldomain.net
> > (host smtp.earthlink.net[207.217.121.221] said: 421
> > flamingo.mail.pas.earthlink.net: SMTP command timeout - closing connection)
> > phthenryearthlink.net
> >

If you are using a "relayhost" (relayhost = smtp.earthlink.net) with
Postfix versions prior to 2.0.x, also set "disable_dns_lookups = yes".
This will turn off recipient domain canonicalizatio, which can introduce
delays into the SMTP dialogue. Also if you are not already, run a local
DNS cache.

--
        Viktor.

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