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IANA's email about why example.com changed | Oliver Dunk (www.oliverdunk.com)
submitted 4 weeks ago by to c/technology@lemmy.world
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[–] 9 points 4 weeks ago (4 children)

I use something like user@invalid

Or user@domain.invalid

invalid a reserved TLD meant for basically this exact use-case.

See RFC 2606

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