Do you have a reverse-DNS lookup for
that address?
Ryan
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To: firewalls
cc:
From: richard @ eurosys.nl ("Richard Heuft") @ smtp
Date: 04/29/97 04:39:40 PM
Subject: slow e-mail clients with packet-filter
Hello All,
At my site we use a dedicated e-mail server (running SCO OpenServer 5.02)
to send and recieve mail from the internet. Between our internal ethernet
and the mail-server is a Linux packetfilter (ipfwadm) with SMTP and POP3
forwarding enabled. When we send/recieve e-mail with Win95 clients using
Microsoft internet e-mail client, the POP3 connections are fast but sending
with SMTP is slow. It takes a while before it sends but when it does it's
fast. I've got the feeling that something more than port 25 and 110 are
needed for the delivery that the client does. I checked port 113 (auth) but
that didn't seem to help, any ideas ??
Richard Heuft, Euroned B.V. Sittard, The Netherlands
e-mail: richard @
eurosys .
nl
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