piighost/email

Email address, simplified RFC 5322. The lookbehind pins the start of the local part and the domain is segmented label by label, which keeps the scan linear.

Label: EMAIL

Pattern

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

Must be caught

• Write to john.doe@example.com for any question. → john.doe@example.com
• Contact : support+billing@mail.example.org → support+billing@mail.example.org

Must be left alone

• not an email
• john@doe

Tags: international, contact

Download the detector as TOML

Used by

• piighost/contact — How to reach a person, without knowing where they live: email, international phone, URL.
• piighost/generic — Country-agnostic shapes: email, URL, IPv4, card number.
• piighost/logs — What a server log or a traceback carries: addresses, machine identifiers, and the credentials that end up in them by…

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