VIP Task Manager 3.5.1 (Build 523) will not send e-mail notifications if a resource name contains a comma.
Our department set up resources for each individual, in the form "LastName, FirstName". We enabled e-mail notifications, and setup the SMTP settings on the server, but we were not receiving any notifications by e-mail. The test e-mail worked fine.
I setup a Wireshark network capture, and noticed that all of the e-mails were being addressed to "LastName", with no e-mail address. Then, I peeked into the Firebird database, and saw that the addresses in the e-mail table were listed as "LastName, FirstName <firstname.lastname@domain.com>". After I manually modified these addresses to "FirstName LastName <firstname.lastname@domain.com>", VIP successfully sent out e-mail notifications.