Sorry, Mail. My fledging relationship with you was just killed thanks to OS X Mavericks.
TidBITS confirmed what I suspected the first time I launched Apple Mail after upgrading to Mavericks on Tuesday -- Gmail and Apple Mail are no longer friends. It was always a tenuous relationship to begin with. As writer Joe Kissell pointed out, you had to do a bit of a runaround to bring Gmail onto your Mac without hogging your entire hard drive. But now Apple Mail is trying to act like Gmail, and in the process is running into numerous syncing issues, ballooning the size of your mailbox, and forces you to activate Gmail's
