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
