    FUNC :: boolean is_mail ( string address [, boolean have_mxhost ] )

    Return TRUE if is mail address format, FALSE if not.

    boolean have_mxhost default value is: false

    Example:

    // verify if "username@domain.net" is mail address format and have MX zone
    echo FUNC::is_mail('username@domain.net', true) ? 'true' : 'false';

    See Also: FUNC::getmxrr_win()

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    Last update: Sunday, July 01, 2007