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Email address inspector

Inspect the parts and basic format limits of an email address.

Showing a worked example. Change the values and the result updates, and the answer lives in the URL.

Address parts

Local parthello
Domainexample.com
Top-level domain.com
SubdomainNone
Plus tagNone
Canonical form (lowercased)hello@example.com

Measurements

Total length17 characterswithin the 254-character RFC 5321 limit
Local part length5 characterswithin the 64-character limit
Domain length11 characters
Domain labels2
Syntactically validYes

Encodings

URL encodedhello%40example.com
mailto: linkmailto:hello%40example.com
Base64aGVsbG9AZXhhbXBsZS5jb20=

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