CODEWITHSUNDEEP
regex.net-core
amin89
amin89

Reputation: 437

Regex should accept multiple dots but don't

I want to accept mail formats like these :

"[email protected]"
"[email protected]"
"[email protected]"
"[email protected]"
"[email protected]"
"[email protected]"
"etc..."

How can I modify this regex to accept dots inside emails?

@"^([\w\.\-]+)@([\w\-]+)((\.(\w){2,3})+)$"

thank you.

Upvotes: 1

Views: 266

Answers (1)

Wiktor Stribiżew
Wiktor Stribiżew

Reputation: 626926

To answer your question: when your after-@ part contains more than 1 dot, the one-char parts between the dots cannot be matched due to the {2,3} limiting quantifier minimum threshold. It requires at least 2 chars in between the dots.

You could fix it with ^([\w.-]+)@([\w.-]+)(\.\w+)$ where all the dot parts but the last one in the domain part would appear in Group 2 and the last one will be in Group 3.

The best approach to validate an e-mail in .NET is the one described here.

Upvotes: 1

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