Rated 5 out of 5 stars

My TB had become inconsistent in it's built in 'new mail' audio alert & I have been unable to correct the problem, even building a new profile (pain in butt) didn't help.
I relied heavily on the audio alert when waiting for new mail to come in so it was very frustrating not to be able to trust that TB was doing just that.

Mailbox Alert have given me a different way to do what TB sometimes wasn't + all the other options that it offers. So far so good I just may 'not' go bald after all :-)
A big Thank You to Jelte Jansen for your work on this add-on. Your efforts are appreciated !
Russ.R

This review is for a previous version of the add-on (0.13.1).