I found these two suggestions at an Apple help site:
1. Go to Settings>Mail the mail account in question and turn the account off and then back on
2. Go to Settings>Mail and delete the account and reenter the settings
I tried the first but it did not work. The second seems a bit drastic. It seems to me there should be a less invasive solution.
ryck
"What Were Once Vices Are Now Habits" The Doobie Brothers
iMac (Retina 5K, 27", 2020), 3.8 GHz 8 Core Intel Core i7, 8GB RAM, 2667 MHz DDR4
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