Ex-bug-contact, how can I become ex-bombarded

[Ian Jackson]

I used to be the bug contact for firefox.  This wasn't really working,
so I'm not any more (and at the moment we don't have another bug
contact).  I'd like to free up my inbox from all the bugs that I got
automatically assigned and subscribe to.  Is there a way to do this
that's (a) relatively automatic and (b) won't destroy the information
in the cases where I or someone else have specifically subscribed or
assigned me ?

Ian.