Hello dear people,
Please believe, I am Googling the internet about one week and I did not find any possible solutions for my issue with SendMail & Postfix. I am pretty new on Unix, Linux, Webmin & Virtualmin. Operating system of my VPS is CentOS 5. Webmin and Virtualmin (Free Version) is installed. As I require a mail server, I decided to add SendMail. I could configure SendMail enough but there was a problem, I can mention it as below that I can send e-mail messages to anywhere through 'User Mailboxes' but not Outlook Express. Authentication works correctly. The problem is that SendMail tries to relay target email domain and not my server. It is what I have found out. Anyway, I could not find any possible way to resolve it. I decided to switch to Postfix. But post on Postfix thing's gone wore. I was unable to receive emails and no emails were sent. For incoming I get "rejected error" and for outgoing I get "relay access denied". When I try SSH and telnet localhost 25, I get "relay access denied" error.
I am really confused. Please let me know what should I do.
Please help me.