Outlook IMAP Timout Errors UW-IMAP

OK - this is driving me nuts. Trying to set up Outlook using IMAP. The server is WU-IMAP and everything actually works - except - that every 45 seconds or so Outlook pops up an error message:

"Your IMAP server has closed the connection. This may occur if you left the connection idle for too long." In the details it adds:

"Lost Mailbox Lock"

So - I googled this and there are a lot of people who have the same problem but not finding a solution. Anyone run into this and solve it?

 

 

 

 

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