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Client Disconnects... Again [message #988] Sun, 02 January 2005 22:44 Go to previous message
Messages: 6
Registered: December 2004
Junior Member

So I see a lot of people have brought up the fact about client disconnects. Thought I would share some of my issues.

So, I have a backup mail server that typically receives all the mail first as I have it set as the "primary" through DNS so the most of all the spam traffic can be filtered through NST and deleted (I have the setting set to like 1.5 for all e-mail accounts except legit, used e-mail accounts... so they are deleted and not forwarded onto the main server where they continue to bounce for days).

Now, I get errors all the time about an unexpected disconnect from my backup server trying to relay legit e-mail to my main server.

I have noticed that when I telnet into the primary server on the port 25 and do the commands myself, I will enter the data, and then give the command that I am finished, typically a carriage return, followed by a period, followed by another carriage return.

Sometimes it will sit there for a good 30 seconds before it finally comes up with a "confirmation code" and indicates that the mail was accepted/denied for delivery.

Now, when I take NST out of the picture and do the telnet straight to my SMTP server, it immediately is accepted and it doesn't wait that 30 seconds or whatever before it is accepted/denied.

This is causing many client disconnects on my side, and it isn't exactly because it is spam mail. It seems that there is something that is hanging up NST that causes it to lag 30 seconds or so before it says that it accepts/denies the mail for delivery.

I have the RBL timeout set to like 5 seconds...?

I have 384 MB RAM running a 900 MHz processor.

Brian S.
A+, Network+, 2000 MCSA, CCNT
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