e-mail dilemma

I finally got DSL and a new e-mail account. I have 7 outstanding queries, some email and some snail mail. The old account is due to shut down in July. I intend to re-email the agents I've e-queried with the updated address, but I am not sure how to handle those I've contacted snail mail. I'm afraid if I email it will be confusing. So far I've had 2 requests for fulls, so I am optimistic that at least one of the 7 may request to see more. If an agent makes a request via e-mail and either doesn't get a response from a writer or gets an undeliverable address will they pass altogether or find another way to make contact? Ugh! Bad timing I know, but the dial-up dinosaur was becoming impossible.
-Laura

Thanks! I will look into that.
-Laura

Yeah, I checked with earthlink and I can keep my old email for $3.95 so I'll keep it for a year or until all the responses are in - whichever comes first. So if my book sells and my advance is over $47.40 it will have been worth it .