E-mail Threading for Notifications
As you’ve probably noticed, we’re reducing the amount of notifications by merging changes made by one user into a single e-mail containing only the resulting change. That enables fast tweaking of reported issue without bothering its assignee several times.
Moreover, if your e-mail client supports threading, notifications about the same issue can be merged into a single thread.
GMail conversations are supported too:
And that’s how it looks in Thunderbird: