Regex pattern issue with single character

Question

I have a regex for emails validation and it goes like this:

[A-Z0-9a-z._%+-]+@([A-Za-z0-9]+[.-]?)+[A-Za-z0-9]+\.[A-Za-z]{2,}

But some users with a single letter after the @ character email can not be validated. For instance: [email protected] is not valid.

I'm not sure how to change the regex to allow this validation as well.

By checking it, this part here @([A-Za-z0-9] should already allow setting at least one character after @ but it doesn't. If I put like at least 2 letters then the email is validated. For instance: [email protected] is valid.

Any help is more than welcome.

Your pattern enforces at least two characters. That is because ([A-Za-z0-9]+[.-]?)+ will require at least one, and followed by [A-Za-z0-9]+ which requires another character — Tomerikoo
– Tomerikoo, Commented May 2, 2023 at 11:36

Javohir Xoldorov · Accepted Answer · 2023-05-02 11:34:28Z

1

Maybe you can try this way [A-Z0-9a-z._%+-]+@([A-Za-z0-9]+[.-]?)*[A-Za-z0-9]+\.[A-Za-z]{2,}

answered May 2, 2023 at 11:34

Javohir Xoldorov

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2 Comments

Tomerikoo Over a year ago

An explanation could be nice... Especially considering you only changed a single character from the original pattern...

Javohir Xoldorov Over a year ago

Thank you, now I will try to help people with a step-by-step explanation

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