#2421 new
Gregory MacIsaac


Reported by Gregory MacIsaac | October 28th, 2019 @ 10:02 AM

Hi -- I keep getting the message that the UIVALIDITY of one or more of my mailboxes has changed. And then it takes a very very long time to resync the mailbox. I'm on: MacBook Pro (Retina, 13-inch, Mid 2014), running Catalina 10.15. But the problem was happening before Catalina. My university faculty email is the problem, and they run an Office 365 server (unfortunately). Any ideas why this is happening?

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Mac OS X email client.

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