I have a pobox.com account whose address I use as my main e-mail address and that forwards my messages to a Gmail address.
Eventough that is the address I tell my friends and coleagues, when I send e-mail from my iPhone it uses the default gmail.com address, and so people start to pick that as my e-mail address.
How should I configure a Gmail account in the iPhone that uses my pobox.com address for sent messages, instead of the gmail.com address? How should I set up storage of sent/junk/trash messages? How will Gmail archiving work?