[gkop]

Do we need to batch notify all senders that we are doing this?

How often are we allowed to do this before it becomes rude?

[jrochkind1]

No, you don't need to notify.

At the point you "declare email bankruptcy", you are probably already missing and not responding to emails. Rude or not, it's already happening. email bankruptcy is an attempt to keep it from continuing to happen, like it will if you continue on the course you are on.