Re: unable to send email to some domains

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In article <Pine.LNX.4.44.0210301137250.20556-100000@stumpy.chowhouse.com> you wrote:
> mailserver:~# telnet remote.mailserver.com 25
> telnet: connect to address xxx.xxx.xxx.xxx: Connection refused
> orion:~> telnet remote.mailserver.com 25
> Connected to remote.mailserver.com.

some mx admins think, they can avoid relaying by firewalling their mail
server against anything but the secondary mx. They also refuse to remove the
primary (firewalled) mx from their dns because they dont know how to tell
the secondary how to deliver mail.

This is a serious and common missconfiguration.

It could also be, that in your case you simply operate the mail server
behind a gateway which is not doing port forward for the smtp port.

Greetings
Bernd
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