Flag for indicating if the isEmail function should perform a DNS check or not.
An email status code, indicating if an email address is valid or not. If it is invalid it also indicates why.
Check that an email address conforms to RFCs 5321, 5322 and others.
Represents the status of an email address
References:
Dominic Sayers, Jacob Carlborg 2008-. Test schema documentation: Copyright © 2011, Daniel Marschall
3.0.13 - Version 3.0 of the original PHP implementation: http://www.dominicsayers.com/isemail
Boost Software License 1.0 Dominic Sayers graciously granted permission to use the Boost license via email on Feb 22, 2011.
Validates an email address according to RFCs 5321, 5322 and others.