I actually searched their forums for "IMAP" (to see what sort of responses other people get... users, mind you, not developers)...
...seems like they have a large number of first line support techs, outsourced (based on their names), who make sure to answer every single forum message.
Those answers are timely, polite, project a good professional image... and, most of the time, completely useless.
Cf. Google -- they don't even bother with hiring humans for first line support. Their support pages are a maze of nested menus, so if your issue doesn't fit into their classification, you're out of luck right there.
This just goes to show that 1) support is expensive, maybe even more so than R&D 2) good support is outrageously expensive.