I have a Redhat 7.0 box acting as a router between my LAN and the internet over a cable modem. Everything works great, including games or voice even, just not SMTP.

When trying to send a message with Outlook, for instance, it gives an error message saying "relaying denied".

(BTW - this is trying to use an email account which is NOT that of the linux server, just another one)

To me it just sounds like I somehow have to enable port 25 to be forwarded as well, but I'm not quite sure if that's right, or how to do it for that matter.

Any help someone could offer would be great. Thanks!

j.

Your client needs relay permissions.. You can specify that in the sendmail config files in /etc/sendmail

Use mailconf command. It will be very userful
siddiqu.t

If you don't want to hack your sendmail.cf file directly try creating a file called 'relay-domains' in /etc/mail (thats where it is on mine) and simply adding your domain to it. Literally, a text file that holds some.domain.com. You might also want to add a Cw line to your sendmail.cf file, just put it under the existing one (somewhere near the top I would expect) note the lack of space between the Cw and the domain. This will stop sendmail moaning when relaying mail to user@your.domain.com as opposed to user@somemachine.your.domain.com.

HTH

Jamie...