I want to sync several folders so I can see the message counts and read the quickly. However, I only want notifications for messages in my "Inbox". For the rest (mostly mailing lists), I still want to be able to search and read them quickly like any other mailbox, but without cluttering my notification bar with reminders about the thousands of unread mailing list messages.
From newbielink:http://www.aqua-mail.com/forum/index.php?topic=38.0 [nonactive], it sounds like setting the folder to "Sync as Spam" will do what I need. However, it sounds like this is not the intended use, since these messages are not spam. Would there be any bad side effects (e.g., automatic purging, blacklisting senders, less cautious deletion UI, etc?)?
P.S. I just discovered AquaMail yesterday, and WOW!!!!! What a breath of fresh air... The design and implementation is the best I've ever seen on any mobile platform.