When you launch the Mail app on your Mac computer and try to move or delete the emails from your email account, you may face the Mac Mail error 1030. The error message will also notify you that the operation could not be done. There is no particular reason for this error. Many users have come across this error in the Mail app. This could well be a system software bug on your Mac. Here, we provide a few solutions to fix the error.
Solution-1: Reconfigure the SMTP settings
Solution-2: Fix the error manually
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