DNS timeouts perhaps? Can the mail server resolve the IP of the gateway
involved?
J.
----- Original Message -----
From: Thomas Balle <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Friday, May 28, 1999 2:08 AM
Subject: Extremely slow POP & SMTP
>Hi,
>
>For some time I have experienced a problem which may be a qmail problem but
>Im not sure.
>
>I have a number of dial in customers who uses ISDN routers with pat/nat
>translation some of them have great difficulties sending and checking mail,
>it often takes in excess of 20 sec. to establish a connection to my qmail
>server regardless of the client program (I also tried to telnet directly to
>port 25 and 110 it takes the same time)
>
>Other customers with the same/very similar hardware config connects without
>a problem.
>I have not experienced the problem with customers who has direct access to
>the internet ie via a modem dialup.
>
>For all I can see the pat/nat works fine and they connect rapidly to all
>other servers on my network including af test server I have running
sendmail.
>
>What could make the connect time so extremely slow ?
>
>Thanks,
>
>Thomas
>
>
