Filters whether an email address is valid. This filter is evaluated under several different contexts, such as ‘email_too_short’, ‘email_no_at’, ‘local_invalid_chars’, ‘domain_period_sequence’, ‘domain_period_limits’, ‘domain_no_periods’, ‘sub_hyphen_limits’, ‘sub_invalid_chars’, or no specific context.

Parameters

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( 2.8.0 ) . .

$is_email

( string|false ) The email address if successfully passed the is_email() checks, false otherwise. . . .

( string ) $email The email address being checked. . . .

( string ) $context Context under which the email was tested. . . .