I agree with above post. I do something similiar with Message Alerts from
WebMessenger Inc..
When I don't want to be bothered, I activate a email rule that I set up to forward email to another address that I have that I can check at a later time. Not including my device email address, I have two emails (gmail), one that acts as a redirect to send emails to my blackberry (I give this email out), and the other will receive messages forwarded from the first one (I dont give out this address). What is different though is that in Message Alerts I can delete the email so it never stays in my inbox on my blackberry (very handy to save space as I also get bombarded).
I know sounds like alot, but I have had Message Alerts forever, since my 7290 days!