I have an email account with Tiscali which, using Thunderbird on my PC, connects using IMAP. On my iPhone 3G (original software) it insists on setting up the same account using POP, which, when enabled, appears to interfere with my PC access by locking the account in some way. It automatically set up IMAP OK for a Gmail account. Is there a way of forcing the iPhone to use IMAP for this, or am I stuck with POP? Edit much later.... I have found the way. Created the IMAP a/c in Windows Mail on the PC then synced it using iTunes (it wouldn't look for Thunderbird for syncing).