said by wmcbrine
Search "gmail imap non standard" for much more.
I've had problems using it with Alpine (which is basically the reference implementation of IMAP). I had to change settings to suppress some of the error messages.
Yeah it seems there are still some issue with older clients - predominately MS Office 2003 and older.... I've never had any issues with office 2007 and Thunderbird ever ....seems most of the issue revolve around labeling these days....