This is why I never use these IANA-reserved domains like .test, .example, .invalid, .localhost.
I always make up some impossible domains like domain.tmptest
Otherwise you're one DNS "misconfiguration" away from sending dev logs and auth tokens to some random server.
> Since at least February 2020, Microsoft's Autodiscover service has incorrectly routed the IANA-reserved example.com to Sumitomo Electric Industries' mail servers at sei.co.jp, potentially sending test credentials there.
I always make up some impossible domains like domain.tmptest
Otherwise you're one DNS "misconfiguration" away from sending dev logs and auth tokens to some random server.
> Since at least February 2020, Microsoft's Autodiscover service has incorrectly routed the IANA-reserved example.com to Sumitomo Electric Industries' mail servers at sei.co.jp, potentially sending test credentials there.