Mail app takes up to a minute to open, this is much slower than expected.
Using Monterey 12.7 on MacBookPro 2016. Sender, recipient, subject date etc. OK but content of the mail appears with long delay 30 secs to a minute. So far I have re-installed OS, de- and reinstalled Mail, closed the account and created a new one. To no avail. Network works properly, web-based email pages OK, account works properly on iPhone. What next????
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MacBook Pro 15″, macOS 12.7