Centos 4 / Postfix / SMTP

[chrism at imntv.com (Chris Mauritz)]

Nigel Kendrick wrote:

>
>Nope - no firewall - I've just double checked:
>
>[root@woking ~]# chkconfig --list | grep ip
>iptables        0:off   1:off   2:off   3:off   4:off   5:off   6:off
>
>
>  
>

Can you telnet to port 25 of your upstream host from another "known 
working" system?

Cheers,

C