IMAP outgoing emails fail to save copy on remote server

Hi, I have three IMAP email accounts that are sending and receiving email, but do not save a copy of the outgoing mail on the remote server.

Yesterday I set up a new addon domain in cPanel and created 3 email accounts under it. I used cPanel's secure IMAP script to configure my email client (Mail - Mac OSX 10.6.8). Mail preferences are set to leave a copy of outgoing mail on the server. Mail sends and receives fine, and leaves a copy of the outgoing mail in the 'Sent' folder on my computer, but there's no copy whatsoever of any outgoing mail on the remote server, neither in the email account folders, nor in 'Sent'.

For that matter, the emails also do not show up in the 'In' box on the remote server. In Mail the IMAP path prefix is 'INBOX' but the remote server's 'In' box is empty.

Webhost support says it could be a problem of different configurations over a number of devices and recommended I switch to POP since I want to store emails on my devices. However, trying to sync POP accounts between 3 devices is a royal pain, and that's why I've set the accounts up as IMAP. So far I have configured the accounts on only one machine, so if there is a conflict in configuration, it would have to be somewhere between cPanel email and Mail.

I'm using gmail IMAP with Mail, and it works flawlessly.

Any suggestions what the problem might be? How to resolve it?

 

No root access. In touch with webhost support, but as stated above, they recommended switching to POP. : ( At the moment, support is asking me to remove the accounts and reconfigure manually without using the script. Wish me luck. I'll report back what happens / what doesn't happen. : )