We have set SBS 2011 server with exchange. We have a third part SSL cert and all remote users can use exchange. We have one user that is using apple mail and because of the issues with the latest version needs to use IMAP.
I have set IMAP up but and everything works but in in outlook when I set the "my server requires authentication" I get an error that says the client does not support the authentication method.
I have tried the three authentication methods listed for IMAP but I still get the error. If I do not check the box I don't get an error but I can only send mail to internal users.