When sending a read receipt I get the following message in an operations\errors window.
An Error occurred - Sending email failed with an error: Operation would change object type, which is not permitted.
So I choose ignore and now I get the error every time I send and receive
I had this happen before so deleted the whole cache and settings are started again … until it reoccurs
There is nothing in the outbox - it looks like the read receipt is hanging - how do I clear it, I do not want to keep refreshing the cache and reset the settings !