Regular Expressions 101

From:the literal text From: (case sensitive)

Negated Character Class[^@\r\n]+

+matches at least one character outside the set below:

@the literal @ (64₁₀ / 100₈ / 40₁₆)

\ra carriage return (ASCII 13)

\na line-feed (newline) character (ASCII 10)

@the literal @ (64₁₀ / 100₈ / 40₁₆)

Atomic Group(?>(\w{2,}\.)*)

Group 1(\w{2,}\.)*

*repeats the group contents below any number of times:

\w{2,}any word character, repeated at least 2 times

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

Negative Lookahead(?!(com|net|gov|edu|org)[^\w\.]?)

Group 2(com|net|gov|edu|org)

1st Alternativecom

comthe literal text com (case sensitive)

2nd Alternativenet

netthe literal text net (case sensitive)

3rd Alternativegov

govthe literal text gov (case sensitive)

4th Alternativeedu

eduthe literal text edu (case sensitive)

5th Alternativeorg

orgthe literal text org (case sensitive)

Negated Character Class[^\w\.]?

?matches at most one character outside the set below:

\wany word character

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

Global pattern flags

g modifier: global. Finds all matches instead of stopping after the first

m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string

Detailed match information will be displayed here automatically.

Search reference

Regular Expression

From:[^@\r\n]+@(?>(\w{2,}\.)*)(?!(com|net|gov|edu|org)[^\w\.]?)

New

From: user.name@mail.com
From: username@sub.mail.com
From: username@sub.com
From: username@sub.io
From: username@sub.blurdy
From: username@sub.blub.example