I've been doing a bit more investigating and discovered that I can no longer create new folders under either account either. I did create 2 new folders earlier today. When I now attempt to do so, it seems to work ie. no error message but the new folder doesn't appear. I have created a new folder under 'Local Folders' and can save Sent items to that folder.

Latest update. I did some more fiddling about. After redirecting to 'Local Folders' I have now pointed the Sent items back to the Sent folder for each account and copies are being saved OK. Whether it was a glitch which will reappear, only time will tell. For now it is working OK.

Are your accounts pop or imap?

If Imap: Make sure you have subscribed to see those folders.

• Right click on imap mail account in Folder Pane and select 'subscribe'

In list:

• select the 'Sent' folder.
• click on 'Subscribe'.

Now make sure the account is using that folder

• Right click on imap mail account in Folder Pane and select 'Settings'
• Select 'Copies & Folders'
• Select: Place a copy in
• Select 'Other
• choose the 'Sent folder on imap mail account
• click on 'OK'

If you create new folders in an imap mail account you need to make sure are subscribed to see those new folders.

Thanks for the suggestion, but when I look all folders already have 'subscribe' ticked.

But have you actually set up the account to use them ?

• Right click on imap mail account in Folder Pane and select 'Settings'
• Select 'Copies & Folders'
• Select: Place a copy in
• Select 'Other'
• choose the 'Sent folder on imap mail account'
• click on 'OK'

Thanks Toad-Hall. Yes I did do all that.