This one is going to be interesting.
In SETUP > OPTIONS > Events and Alerts are two key fields for connecting to a mailhost ( mail server and from field ) and in there i have the IP address of the mailhost and a email address that are being used on the filers for their autosupports. The DFM host and filers are on the same subnet and have all the same network stack; the filers can send autosupports just fine.
I am testing email alerts and getting errors in the dfmeventd.log that "alert failed to deliver mail to myemail@customer.com"
that error message is not very descriptive. From the DFM host I can ping the mailhost just fine. Are there any tests I can do from this host to ensure mail connectivity and pass that along to the DFM server so it can send emails?