The Mail client in Mac OS X Leopard includes a new option in Preferences > Accounts > Advanced called “Use IDLE command if the server supports it”. But it does not work for me. New mail only arrives if I explicitly check or if Mail periodically checks. Judging from other posts on this forum, the feature doesn’t seem to be working for anyone else, either. I would just like to know… Has anyone actually gotten this feature to work at all?
This comes up from time to time with no resolution. Even Dallas has said it exists, but has not been thoroughly tested. For most users who try it, their luck is hit and miss with no rhyme or reason.