What is the difference of Deleted item folder and the Trash?

I have two email pop3 accounts. One account, I can see both trash and deleted item folders, on the other I can only see trash. What is the difference between these two folders?

Hi, are you possibly using the account on another device, some extra folders can sometimes be created by other devices to store their deleted email in, instead of using the existing trash folder.
This may be due to use of a different default name for the special folder (e.g. Deleted items/Trash).

If some deleted items are only stored in one of these folders, you can change the default folder name in your account setup.

Hope this helps,

Thanks, that has answered my query. Great email programme!