this post was submitted on 19 Jan 2026
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Mo Validation Mo Problems (lemmy.world)
submitted 3 days ago* (last edited 1 day ago) by qaz@lemmy.world to c/programmer_humor@programming.dev
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[–] gegil@sopuli.xyz 84 points 2 days ago (2 children)

The best email validation is just sending an email to whatever provided by the user. If user receives an email and validates it, than its validated.

[–] bestboyfriendintheworld@sh.itjust.works 1 points 1 day ago (2 children)

Email validation for a form should at most look for

  • at least one character
  • followed by @
  • followed by at least one character
  • followed by .
  • followed by at least two characters

Sending an email can take a few minutes. Form validation is instant.

[–] JohnEdwa@sopuli.xyz 2 points 1 day ago

Which would still not be perfect because "foo@bar", "foo@[123.123.123.123]" and "💩 @[IPv6 :::1]" are all technically valid email addresses.

It looks like the only validation that doesn't block something valid pretty much would start and end at "It has at least one @ symbol, and something on both sides".

[–] planish@sh.itjust.works 1 points 1 day ago

So I can't be directly bezos@aws?

[–] kunaltyagi@programming.dev 12 points 2 days ago

Email address spec is convoluted and this is indeed the best way. Noobs and ninja do it this way, normies try to validate before sending email