emails won't delete on imac

[macbabs5]

running HighSierra on imac 2011 model, have trouble deleting emails the message I get :
An error occurred while moving messages to mailbox “”.
I guess the error has something to do with "". but I can't see where that is, looked at the accounts etc can't see "". anywhere, I need to clear out the inbox and can't. any suggestions?

 

[Fishrrman]

Try creating a NEW mailbox with a similar name.
Can you move emails into the new mailbox?

 

[tlaw81]

I've had this happen before and logged out and back in of my account and it fixed it.

 

[macbabs5]

OK , All I want to do is Move the emails to TRASH(delete) I need to make more room for other emails.
I guess I cant make another Trash mail box?

 

[Fishrrman]

tlaw had a good suggestion.
Try shutting down -- all the way off.
Then, reboot and log back in.
Still having the same problems?

 

[macbabs5]

Hi All, done all the above, still can't delete them, it's only the hotmail, Gmail is OK to delete"..
If I made a new folder on desktop for hotmail, then deleted the hotmail account from the accounts list on iMac would that get rid of the old emails, and I could use the shortcut on desktop for hotmail??