e-mail issues- can´t send mails to any domain but mine

[pewichali]

Hi, I installed ISPConfig with the perfect setup OpenSuse 10.2 all seems to work fine the domain, the site, i have no problems login and managing accounts; but i have an issue with the email. It happens that i can receive mails to mydomain.net from any domains but when im sending mails it only delivers mail to mydomain.net i cant send mails to any other domain different to mine. What can it be, plz helpme that's the only failure im experiencing with it.

Checking the log on /var/log/mail it says something like:
to=<dude@mydomain.net>, relay=none, delay=0.24, delays=0.07/0.01/0.17/0, dsn=5.4.6, status=bounced (mail for www.mydomain.net loops back to myself)
is it something i did wrong???

[till]

Please add:

www.mydomain.net

at the end of the file /etc/postfix/local-host-names and restart postfix.

[pewichali]

Thanks for answering, Ok i did it and still cant send mails to any other domain, if i send mails from yahoo; hotmail, gmail or any other account it is picked up by the mail server and delivered to the intended receiver; but the problem is that if i send an email from mydomain.net to gmail with a cc to mydomain.net I only receive the one that goes to mydomain.net I`m still waiting on the other accounts to get my copy of all those tests mails.

I've copied another line of /var/log/mail and say:
postfix/smtp[5574]: connect to mx3.hotmail.com[65.55.37.120]: Connection timed out (port 25)
Apr 9 14:25:10 dynamic74-131 postfix/smtp[5574]: 57C624386B: to=<dude@hotmail.com>, relay=none, delay=153, delays=2.3/0.47/151/0, dsn=4.4.1, status=deferred (connect to mx3.hotmail.com[65.55.37.120]: Connection timed out)

and here is some lines when a mails goes to mydomain:
postfix/local[5597]: E64C44386C: to=<dude@mydomain.net>, orig_to=<dude@mydomain.net>, relay=local, delay=4.2, delays=0.14/2.5/0/1.6, dsn=2.0.0, status=sent (delivered to command: /usr/bin/procmail -f-)

It seems to me like if my postfix isn't sending some data to mx3.hotmail and that's why sends a timed out conection, am i right? any sugestions? (sorry 4 my english, im trying to be as clear as i can)

[till]

Ask your provider if they block outgoing smtp connections and in case that you run your server on a dynamic IP then hotmail will reject the mails from their side.

[tebokkel]

Check with telnet if you can reach any outside port 25:
telnet mx3.hotmail.com 25

If not, you could also try to use your providers mailserver to forward your email (in /etc/postfix/main.cf):
relayhost = smtp.yourprovider.nl

Paul