Which Private Message add-on is this?

[gobears20]

I am searching for a private message add-on that is currently on here whenever you receive a private message you will see a blinking mail icon at the top.

Does anybody know where I can find this add-on?

I have attached a print screen...

[RobbieZ]

That would be here..

https://vborg.vbsupport.ru/showthread.php?t=103202&highlight=blinking+message

[gobears20]

Thank you :)