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Jeroen W. Pluimers on .NET, C#, Delphi, databases, and personal interests

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if you allow users to register email addresses on your domain, make sure they can’t get: admin@ administrator@ hostmaster@…

Posted by jpluimers on 2019/12/16

Great tip from: [Archive.is] Michal Špaček on Twitter: “Friendly reminder: if you allow users to register email addresses on your domain, make sure they can’t get: admin@ administrator@ hostmaste… https://t.co/wUHXrQC2J0”:

 Friendly reminder: if you allow users to register email addresses on your domain, make sure they can’t get:
  • admin@
  • administrator@
  • hostmaster@
  • postmaster@
  • webmaster@ (and others from RFC 2142)

otherwise users might be able to get an HTTPS certificate for your domain.

–jeroen

–jeroen

This entry was posted on 2019/12/16 at 12:00 and is filed under Encryption, https, Let's Encrypt (letsencrypt/certbot), Power User, Security. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.

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