Simple regex for email validation using C#. Has @ symbol in the middle [duplicate]

Question

I don't know anything about regex.

How do I create an email validation that allows such entries?

Allow

a1b2c3@a1b2c3 a@a 1@1 a1@a@a2e !s@s$ds

Dont Allow

@ @@@ !@#

Basically allow characters that has @ in the middle

Stop trying to validate email addresses with regular expressions; it cannot work. You can check if the @ is not at the beginning nor end of the address, but to validate an email address you have to send an email. — Dour High Arch
– Dour High Arch, Commented Aug 10, 2020 at 16:26
The best way to validate an email address is to send an email and check the return value. Please, have a look at these sites: TLD list; valid/invalid addresses; regex for RFC822 email address — Toto
– Toto, Commented Aug 10, 2020 at 17:32

Fumeaux · Accepted Answer · 2020-08-10 16:19:26Z

If you aren't fluent in regex you can split the string at "@" and expect two elements.

If you want to use regex, the first result on google was: https://emailregex.com

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