Can't set up email after installing OS 12.4. Message: Unable to verify account name or password.

That message usually means that either the address or password was entered incorrectly. Most email providers have a website you can go to to check your mail, such as https://www.icloud.com. First thing to try would be logging into the website with the same credentials you tried in Mail. If it doesn't work, you may need to change your password or contact your email provider.

If you can’t send or receive email on your Mac - Apple Support

Add an email account to Mail on your Mac - Apple Support

longfellownurse wrote:

Can't set up email after installing OS 12.4. Message: Unable to verify account name or password.

You do not specify what kind of email account is this.. there have been some issue with Exchange, Outlook, 365,

gmail.

In that case verify you have Safari set as the default browser and try again.

You can try —

Mail set up wizard Mail - Official Apple Support