The BIS and BES services on the BB will take any email address and push it. I have 2 POP addresses, 2 Yahoo, 2 Gmail, 1 Hotmail and my BB address all pushed with no issues.
according to the yahoo site I looked at I set this up with my email activation on my blackberry. The only option I have is to set up a work e-mail from an exchange server. When I go through the steps I get to the final page and it says activated Oct. sometime but doesn't give me an option to make any changes.
I'm probably doing something wrong. Those of you who have set yahoo up could ya give me the proceedure?