Postfix / WAN

zdavis · 04-10-2003, 02:52 PM

Having a postfix problem....

I'm using postfix and ipop3 to handle mail. So far, I can send messages to any address without any problems. I can receive messages too, but only if the originate in my domain. So, for example, I can send a message from user1@mydomain.com to user2@mydomain.com. user1@mydomain.com can also send a message to me@yahoo.com. However, user1@mydomain.com cannot receive a message from me@yahoo.com.

Anyone have any ideas what might be causing this?

Thanks!

zdavis · 04-12-2003, 03:12 PM

I hate to be a pest, but does anyone out there have any ideas about this problem? I'm still completely stumped.

Pcghost · 04-14-2003, 12:22 PM

There has to be a recieving restriction in the main.cf file or in an associated table. I would check some of the tutorials for limiting reciepts.

osfestus · 04-14-2003, 02:00 PM

zdavis, sounds like a Redhat 8.0 install to me. The really important parameters for your main.cf file that pertain to your domain are the following.

myhostname = somename.yourdomainnamehere.com
mydomain = yourdomainnamehere.com
myorigin = $mydomain
mydestination = $myhostname, localhost.$mydomain, $mydomain
relay_domains = $mydomain (be careful if you add anything else here)

and then

masquerade_domains = $mydomain

With a standard redhat installation of postfix, those should be enough to get you going.

zdavis · 04-14-2003, 02:26 PM

That did it --

I didn't have the relay line in main.cf. I think I understand what that does, but I'm not sure what the masquerade_domains line does. I searched for documentation on it in main.cf, and didn't find any. What does it do?

Thanks again for your help.

osfestus · 04-14-2003, 02:40 PM

What masquerade_domains does is to hide the hostname from a fully qualified email address. Let's say your domain is mydomain.com and the box that runs the email and holds the user mailboxes is called mailman. You add a user/box called fred. Fred's email address is now fred@mailman.mydomain.com. What the masquerade_domains parameter does is to remove the hostname and send outgoing mail from fred as fred@mydomain.com.