Adding Sandbox Tester in iTunes Connect with an existing Apple account

Question

I\'m trying to add sandbox testers in iTunes Connect. But I\'m getting this error:

The email address you entered already belongs to an existing Apple acco

Answer 1

If you own a domain and can configure your mail server, many of them allow you to set a "Catch-All" mailbox that receives the e-mails destined to non-existing accounts. This way you can create addresses such as tester123@yourdomain.com and you'll get the verification e-mail.