Rated 5 out of 5 stars

If I only used it for preparing birthday emails and holiday emails in advance and scheduling their delivery I would be pleased. But the newest version offers an opportunity to set a default delay in sending ANY email I write. This is not a feature of Thunderbird so having a facility to give me a chance to stop an email a moment or two after sending it (I made my default 2 minutes, I'm pretty slow in the morning to rethink my actions) is priceless.

This review is for a previous version of the add-on (6.1).  This user has a previous review of this add-on.