I have 2 mail readers on this machine, Thunderbird (which is what I'm using to write this mail) and Sylpheed. I also have a Blackberry Playbook which is configured to use one of the same email addresses as used on Sylpheed.
I had previously used Sylpheed in POP3 mode but when I realised that it wasn't displaying the mail I'd sent from the Playbook, I figured I'd change the setup to IMAP. Sylpheed wouldn't let me change it so I deleted the account and recreated it as IMAP. But Sylpheed still won't display the sent mail.
I then looked around for another free mail reader and found Claws. If I set that up in IMAP mode, it *does* show the sent mail. Further googling showed that Claws was developed from the same code base as Sylpheed so if one program can display the sent mail, why won't the other?
Any help/ideas appreciated.