Good Point Titus!
I am in a development situation. I have my live store running one (older) server and my new development site running on a new server that I will not be cutting over to until my store is ready to go. Both are behind the same hardware firewall (not sure that has anything to do with the issue.
We send e-mails through our mivascript application from one site using mvSMTP to an e-mail address at another site that is on the same server. So, for example, the site might be
www.abc.com. We are sending the e-mail to
robin@xyz.com. xyz.com is set up and running on the old server (all DNS records are pointing to that server). I am not exactly sure of what the problem is, but I am thinking that the problem is that when the mail goes out it sees the xyz domain in the localhost, but doesn't see the mailbox for
robin@xyz.com and that is where it is falling down.
If I change the send to mail address to something off of the server, it works fine. So, I think that this is one of those cases when going live will resolve the issues - at least I hope so!
Does that make sense to you?
TIA,
Robin