| Wednesday May 25th 2016

The regular expression required to validate an email address according to the respective RFCs

email validation regular expressionclick for full email validation regular expression

Cheers to the persons using /.+@.+/ as their email validation regex… I like to try “root@localhost” to see if it’ll take it.

Realizing this, some people suggest we stop validating email addresses by computation of any sort. Instead, they say we should just send a validation email to the address. If it doesn’t bounce, and if the user clicks the validation link or replies the validation email, then the address is valid.

Of course, almost all big websites do this, and I find it the most obnoxious part of website registration.

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