It was great while it lasted, but I finally broke up with Gmail. Though I had relied on Google's popular email service for years, my level of satisfaction had been dropping steadily for a while, and changes in the Mavericks version of Mail (about which I've ranted at some length) were the last straw. Now I'm returning to a good old-fashioned IMAP server, and I'm not looking back.Lots of people are blissfully content with Gmail. If you're one of them, far be it from me to change your mind. But I want to tell you what I found problematic about Gmail--and exactly what I did about it.What's wrong with GmailGmail does a great job of filtering spam and searching for content, and Google offers Gmail users a generous 15GB of free storage space (shared with other Google services). If you want to use your own domain name with your Gmail account (a necessity for me), you can sign up for