Postfix - How do I set up a relay so that external users who are logged into the server can email outside the domain?
Posted on 2006-05-21
I didn't see any specific area to post Postfix questions so I hope that this is acceptable.
I have recently setup a postfix email server to replace the "old" sendmail server. Everything appears to be working correct except that when a road warrior logs on to the postfix email serve from outside the building, he cannot send email out to anyone outside the company.
When I log on from insdie the firewall, I can send to local email address as well as outside. The road warriors can receive their email and send to people within the company, but not outside (they use to be able to).
I believe that the problem is in the /etc/postfix/main.cf file. There is an area in the file for relayhost. I believe that it can be configured so that if a person from the outside can log on to the server and receive his email, he will be authorized to relay his email.
Could someone tell me specifically what I need to do?
Tomorrow morning I need to get to work early and hopefully with your help, I'll be able to have this working before people show up.
Thank-you in advance.