Ne email notification

[Tim]

I have just moved from using Xubuntu to SolydX, in both distro's I use 
Thunderbird as my email client. In Xubuntu when a new email arrived I 
used to get a notification but it was an XFCE notification not a 
Thunderbird one, in Solydx when I get a new email I get the Thunderbird 
notification. I don't believe I was running the mail watcher plugin on 
Xubuntu as I never had the icon on the panel and I never configured any 
program to alert me to new emails arriving. Does anybody know how the 
new email notification works in Xubuntu as I would like the same to work 
Solydx?