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markhowellsmead / email_not_specific_domain.txt
Last active November 9, 2023 04:21
Regex for valid email address excluding specific free domains, like Gmail, GMX and Yahoo. Extend the list of domains according to your own requirements.
^([\w.-]+)@(\[(\d{1,3}\.){3}|(?!hotmail|gmail|googlemail|yahoo|gmx|ymail|outlook|bluewin|protonmail|t\-online|web\.|online\.|aol\.|live\.)(([a-zA-Z\d-]+\.)+))([a-zA-Z]{2,4}|\d{1,3})(\]?)$