iPhone can't do everything
You mention you "use every single thing you said" in regards to the original post but thats simply not possible. iPhone CANNOT sync with an Exchange server or any of the comparable corporate mail clients. Through workarounds, you can get your mail via IMAP (still doesn't work well) and your calendar by plugging it into your computer and syncing it with your local calendar copy but no other features work. iPhone has awesome technology but like most things put out by Apple, it has terrible implementation.
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