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• ↓ Everything About Email Regular Expression!
• ↓ General Email Regex (RFC 5322 Official Standard)
• ↓ Test Your Javascript Regular Expression
• ↓ Python
• ↓ Javascript
• ↓ HTML5
• ↓ Top Alternatives to emailregex.com

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"Just copy and paste the email regex below for the language of your choice. Feeling hardcore (or crazy, you decide)? Read the official RFC 5322, or you can check out this Email Validation Summary. Note there is no perfect email regex, hence the 99.99%."

"Start by entering a regular expression and then a test string. Please refer to the Regex Cheat Sheet on the left hand side."

"In case you ever wonder, below is the regex used in type=”email” from W3C:"

"// <![CDATA[ // document ready jQuery(function($) { // capture all enter and do nothing $('#email').keypress(function(e) { if(e.which == 13) { $('#email').trigger('focusout'); return false; } }); // capture clicks on validate and do nothing $("#validate_submit").click(function() { return false; }); // attach jquery plugin to validate address $('#email').mailgun_validator({ api_key: 'pubkey-1f8b273397094dd28c96cd40d5d20f11', in_progress: validation_in_progress, success: validation_success, error: validation_error, }); }); // while the lookup is performing function validation_in_progress() { jQuery('#status').html("<img src='https://mailgun.github.io/validator-demo/loading.gif' height='16'/>"); } // if email successfull validated function validation_success(data) { jQuery('#status').html(get_suggestion_str(data['is_valid'], data['did_you_mean'])); } // if email is invalid function validation_error(error_message) { jQuery('#status').html(error_message); } // suggest a valid email function get_suggestion_str(is_valid, alternate) { if (alternate) { return '<span class="warning">Did you mean <em>' + alternate + '</em>?</span>'; } else if (is_valid) { return '<span class="success">Address is valid.</span>'; } else { return '<span class="error">Address is invalid.</span>'; } } // ]]&gt;"

Key Topics & Focus Areas for emailregex.com:

Everything About Email Regular Expression!

General Email Regex (RFC 5322 Official Standard)

Test Your Javascript Regular Expression

Python

Javascript

HTML5