From: Leonardo Rodrigues Magalhães (leolistassolutti.com.br)
Date: Wed Jan 02 2008 - 09:39:32 CST

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Jake Solid escreveu:
> Messages are being slowly-delivered to and delayed by their
> destination servers. We have few sales reps that send emails to
> registered users. Some of these registered users use email addresses
> that are no longer in use.
>
> When they send the emails a lot of the emails end up in the queue like
> the following:
>
> (delivery temporarily suspended: connect to
> outside.server.com[1.2.3.4]: Connection timed out)
>
>
    'connection timed out' usually will be caused by your internet
connection being saturated, which you can easily identify on the graphs
you should have of your available/used bandwidth. Is your internet link
saturated ??? If yes, there lies your problem. If yes ... is it being
saturated by email traffic or by some other traffic, like HTTP or P2P ??
Note you will have email problems if you get your link saturated by any
other traffic .... you can have a very low email traffic but still have
timed out problems if your link is saturated. is link saturated your
problem ?? If yes, get a bigger link or lower your link usage.

    timed outs can be generated by the remote server getting problems
with saturated connections or overload as well, in which case there's
NOTHING you can do about it.

> When this happens, the users cannot connect to the POP server to
> retrieve emails.
>
    which part of the 'postfix doesnt do pop' or 'postfix has nothing to
do with pop3' you didnt understand ?
> How can I workaround this issue? At least how can I tweak the server
> to allow more resources in case this happens?
>
>
    stop sending messages to addresses which no longer exists would be
an intelligent first step.

--

        Atenciosamente / Sincerily,
        Leonardo Rodrigues
        Solutti Tecnologia
        http://www.solutti.com.br

        Minha armadilha de SPAM, NÃO mandem email
        gertrudessolutti.com.br
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