Class: E-mail address validation class

Class that may be used to determine if a given e-mail address is valid.

It features:

- Simple validation just by looking at the e-mail address string.
- Validation of a e-mail address host as a valid mail exchange domain.
- Validation of a e-mail address by connecting to the mail host server to determine if there is really a deliverable mail box.
- Works under Windows or other platforms that do not have the GetMXRR function enabled, using Moriyoshi Koizumi DNS resolver class.

If you are using Windows or any other platform on which the PHP function GetMXRR is not working, this class can provide an alternative

it checks if mail is good

In the software development are two stages you do, before you start actually typing any character:1. Find out if the software already exists. 1b. Are there possibilities to change this?2. Find out if the main parts of your software are already written.

Used to validate e-mail addresses in this site about training dogs

E-mail validation class

GetMXRR function emulation need to make the class work properly under Windows and other platforms without this function (needs DNS.php mentioned in the Related links section).

E-mail validation test page script