Gmail messages read in apple mail not syncing between devices
Mail not synching between devices
MacBook Air 13″, macOS 12.6
wacca64 Said:
"Gmail messages read in apple mail not syncing between devices: Mail not synching between devices"
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Use a New App Password for Each Device:
Do you use an App Password? If so, try a new App Password. Create a unique on for each device. Remove the current one, and then use the new one instead. Sometimes, changes (i.e. updates) are made to the device, and then mail server syncing becomes an issue (which is what a new App Password it intended to fix). For example, you'd go here for gmail: Sign in with App Passwords - Google Account Help - Google. With each device having a new App Password, all should expected sync just fine.