Primary IP Address causing email problems
I have a dedicated server running RedHat 9/cpanel/whm - and I'm having problems with some email sent by sites hosted on that server. The response I get it is :
SMTP<< 451 Temporary local problem - please try later
One of the accounts that wouldn't receive email is my own account on another ded server. I've managed to get the mail going through by switching off 'Verify the existance of email senders' in the Exim config on that server. Obviously I don't have access to do this on external email accounts, so I need to correct the problem.
I think I may have an idea of what is causing it, but don't know how to resolve it :
The primary ip address of the server sending the email is 65.000.236.18 - and it has the ip addresses in the range 18 ... 22 available to it.
The 'show ip address usage' in whm reports .22 as being in use for the 'hostname' - whereas it should report the primary ip address I guess ?
The etc/hosts file has an entry :
65.000.236.18 server.myhostname.net
The etc/resolv.conf file has :
nameserver 65.000.236.18
There is a correct 'A' entry in DNS for the hostname.
Any ideas would be greatly appreciated ...
Thanks
Andy
