I also use Mail on OSX and you're right, it does have excellent Gmail support. This is definitely down to Apple putting in the work to support Gmail though, rat

I also use Mail on OSX and you're right, it does have excellent Gmail support. This is definitely down to Apple putting in the work to support Gmail though, rather than Mail simply using IMAP as usual and Gmail working like any other IMAP server would. The gp was talking about RFCs and the IMAP protocol implementation itself, so I was talking about the Gmail server at the protocol level, rather than user interface.