Is there a standard domain for testing "throwaway" email?

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I've noticed that the domain

contoso.com

is often used in documentation when a sample is needed. I always figured this was a dummy domain, used like the telephone prefix "555" to route spam into some kind of telecommunicative void (although contoso.com appears to be a real site).

Is there a domain I can safely use when I have to, say, test a registration form 20 times with a unique email address and I don't care what happens to the message, yet I don't want it going to a real person?

11 Answers

We are using .local domains for that.

For testing purposes I like to have e-mail addresses that really do not exist and cannot be registered. Even access by IANA like for example.com is a no-go for security reasons. Accidently sent e-mails to max.mustermann@example.com maybe be delivered to servers controlled by IANA. This maybe an privacy issue for Max Mustermann and so on ...

Do not treat me wrong: This is just for additional security minimizing the risks whereever possible.

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