postfix won't recieve mails from other than my server!

[TheGuy]

Helllo!
While setting up my first mail server with postfix, I ran into a very unusual problem (at least for me)
Users on my computer can send and recieve mails from each other. They can even send mails to other adresses. At first I would have mails returned when I try to send a mail, say from my Yahoo account, to a users on my server. But I had that fixed and now I do not have any messages for undelivered mails, but I do not recieve then on my server. Is it a problem of DNSs not yet updated around the world? Or is there another possible problem?

[kkubasik]

how long has this problem existed? if ony a few hours, then dns resolution and MX record creation are likely culprits, but also make sure hat your hole machine knows its name. not just postfix.

[thenorwegian]

make sure you check your config. make sure its not only relaying it to the localhost; open up a terminal, then type "vi (whatever the mail config is.)" search for 127.0.0.1. If you find it, read the info the config gives you- most likely it will ask you to deliminate that line so you can accept messages and send them. i had the same problem.