I use Verizon DSL. I have Verizon Yahoo! Mail. At home, on my wifi, the iPhone accesses the POP account just fine. But when I am on any other wifi network (a neighbor's, at work, etc), I cannot access the mail. Has anyone else noticed this? Is there a way to make this work? I am using incoming.yahoo.verizon.net and outgoing.yahoo.verizon.net SSL is off on both incoming and outoing. Authentication is on. Perhaps I should be using a particular port? Not sure which ones... Can anyone help!? Thanks!