Hi,

I have 5 IP's on my server that I transferred from one host to a VM on another.  I can send and receive email from the server.  The mail server is mail.domain.com on IP xxx.xxx.xxx.188 and resolves externally to this as does the PTR record, yet there are loads of bounce-backs.  When I look at a received email header I see it has used xxx.xxx.xxx.186.  No protocols are actually bound to this IP and it is used (or meant to be) by HTTP(S) traffic.

When I look in the Smartermail logs I see the following;

Being on a VM I think it's failing over to the server IP (192.168.1.2) which does have protocol bindings and is then simply sending out on xxx.xxx.xxx.186.

I think my first question is, why does it fail to bind to 188?

Second question, if I can't stop the error, how do I then force the internal IP to use 188?

I hope the above makes sense and would dearly like to know how to resolve this.

Thanks.