Today I notice in message boards that there been Questions about adding SWF to e-mail. Musicman @ SWF with email: "your best chances are a SWF loaded from a server (i.e. not attached with the mail) and NOT trying to load variables from its home server
If you need that, create a loader movie that loads the real movie via an absolute path and make sure the two movies do not try to access each other's variables"