Postfix won't start

Hi All,

Firstly, I am a virtual noob to linux. I’m getting the hang of following through walkthroughs etc, but I am still very unconfident.

Anyway, I managed to get virtualmin/webmin installed, and everything is working except Postfix. In shell, I start postfix and it says OK. If I then immediately try closing it or restarting it, it says fail as it is immediately closing. This is the same in Webmin too, it seems OK, then when i refresh it’s down. There is nothing in the log error in the log files I’ve looked at.

Apologies for the lack of info, but is there some obvious step I may have missed? It was a fresh install of 3.87, on a brand new installation on CentOS 5.6 64bit.

Let me know if you want to see any specific log files, and thanks in advance for the help!

I found the correct log file now, and this is the error that I get:
postfix/master[5261]: fatal: bind port 25: Address already in use

I have no knowledge on ports or anything, so a “treat me like I’m thick” approach would be appreciated!