Well this thread answered my first question. Very disappointing. Encouraging that it may be coming soon... Not so encouraging that it's been "coming soon" for a year now. I'm glad I have that money back guarantee; I may have to use it.
I see that users can change their email settings, which is excellent.
And on the last one, I never found a way, but it's not necessary anymore.
I've got a new one though: it seems every message I get is marked as read immediately. I can see this happening if I log into SquirrelMail or through IMAP in my own mail client (Mail for OS X). It happens even if I am not logged into SquirrelMail. Even worse, POP will not download the messages at all! (Perhaps it thinks it already has since they're marked as read.) Any idea what's going on and how I can fix it?