Just installed this today, and am finding it alarming that
1. what the developers recommend (Moving fetched emails to a backup folder is highly recommended.) Is not possible (Invalid or unknown mail folder! >> )
I've been doing a lot of work with the Whole IMAP thing... on your first item, one way is to test it in telnet to see if you're calling the right mailbox.
it could be something as simple as it being a sub-folder under your inbox which would make it INBOX/foldername
If you do telnet list it may help you see what it's seeing ..
TELNET hostname 143
? LOGIN username password
or
? LOGIN domain/username password
or
? LOGIN domain/username/alise password
? LIST "" "*"
(You need the question marks)
You should get a list of how your folders are mapped out.
We are processing currently about 300 tickets / day and it seems rather stable, I guess time will tell.
P.S
You can't expect perfection in a free software, because you can't expect it in a pay software. Active releases, rather active community, open source ... Can't go too wrong :)