I have a MobileMe account and I'm using an email Alias as my standard email.
On my iPhone 3GS (newest firmware, no jailbreak) there is no option to use an alias so i just made a separate IMAP account for the alias i used.

But every message i sent on my iPhone, doesn't sync on my MobileMe ( web and desktop )

Is this because I'm using an Alias or the separate IMAP account ?

If someone has a solution, please share it with me.