We have a Mitel 5000 set up to send emails when users get voicemails, just like many of you. Recently it suddenly stopped working without any changes being made to the Mitel system. No emails come out. Enhanced, forward and copy, welcome to voicemail to email, nothing. It's almost like the Exchange 2010 box is telling the Mitel to go away.
When I look at the logs to the Mitel VM it shows not attempts to connect to the exchange server. I'm at a loss. Our phone companies tech is at a loss. I've rebooted the Mitel system, the Exchange VM, checked every setting, put my computer on its subnet and can ping the server, server can ping the Mitel, all the basics.
The only thing that has changed at all is the introduction of Trend Micro's ScanMail. I would guess this is the reason for it, but it's not a firewall. Just a spam filter. All of the email domains that we have are set to allow as well. The windows firewall is on, but that shouldn't stop any Exchange traffic. The only thing on this VM is Exchange and now Trend. No other programs at all.
Help?!