Hello, I had the same problem too. I am hosting my website on aws with lightsail. You can go to your computer, and download the aws comand line interface here: https://docs.aws.amazon.com/cli/latest/userguide/install-cliv2-windows.html. Learn how to set it up here: https://www.youtube.com/watch?v=Rto7re2-ARM. Once you have that, make sure that you do not have another version of the aws command line on your computer. You will need somewhere where you can read incoming emails from your website (example: example@yourdomain.com). You can use amazon workmail for this, you will find it in the aws management console. Watch this to learn how to set that up: https://www.youtube.com/watch?v=fvnobvOi820. Once you have all of this setup, in your command line (command prompt on windows), run this command: aws sesv2 put-account-suppression-attributes –suppressed-reasons
After that, you can go to wordpress, settings, and change the default email to your email that you set up, and check your email for a link. Once you press it, you will be good to go.
If you have a cpanel hosting, you can do it through the database.
Hope this helps.