I have a ShoreTel phone system. The voicemail server utilizes the IIS SMTP Virtual Server to send email (at least, it's supposed to). Specifically it sends a .WAV attachment when a voicemail is recorded.
The problem I'm having is that no matter what I put in for the smart host the emails are being sent to my website's IP address and this just doesn't make any sense.
Let me give you examples of the information I'm working with:
domain: DomainA.com (hosted at Media Temple) MX for DomainA.com: filter.DomainA.com and mail.DomainA.com (Barracuda Spam filter and Exchange 2010 hosts respectively; onsite)
For the smart host I've tried the internal IP addresses of both my Exchange server and spam filter (wrapped in brackets) and both the internal and external FQDNs for my Exchange server and spam filter.
No matter what I try the SMTP server, as reported by the logs, is sending to the IP address of the website at DomainA.com.
Any ideas on this?