Centos 4.4 ISPconfig I cant recive emails from out.

[polikarp]

Hi;

I searc the forum but I can not find any answer or beter solutions for my problem.

I installed Centos 4.4 with ISPconfig all services are working good.

I have dinamic IP adress and I am using dyndns.org free domains.

my domain like "myname.ath.cx"

Server user can send and recive emails each others there is no problem. Like
user1@myname.at.cx can send and recive email from user2@myname.ath.cx
Even both are can send email to other emails like hotmail or yahoo.

My problem is;
I can not recieve emails from other mail providers like yahoo etc.
Mail log file have no any warning messages.

What can I do?

Thank you for your help.