Greetings all,
First of all, thanks to Dan for qmail. Great Program!!
However, we have a slight problem. We have between our email server and
the Internet a firewall. Someone sent an email to a remote destination
that has multiple MX records. The preference 10 machine does not accept
a connection on port 25 for awhile, and it takes some time for the
preference 20 machine to cycle in. However, since qmail has received a
connection from the trusted side of the firewall, it thinks that the
preference 10 machine has established a connection, yet it never
receives a welcome greeting. Therefore, it puts the outbound message
back in the queue for later delivery.
I have had a significant exchange of email with the admin of the ISP
that is hosting the domain. I started out suggesting that their DNS
records where not correct, since the preference 10 machine NEVER
answers, and it takes some time for the preference 20 machine to cycle
in. They maintain that it is a problem with qmail, and that other mail
servers handle this more efficiently. However, the ISP's own DNS records
do NOT show the same preference 10 machine. Their preference 10 machine
is the other domain's preference 20 machine. Yet my mail to the ISP's
domain has gone thru flawlessly.
What is the consensus of the group here??
Randy Cain, Supervisor
Online Systems/Graphics
CBS Cable Nashville
[EMAIL PROTECTED]
