Attachment Mailer class 1.20

Attachment Mailer class is a PHP class that can send email messages with multiple attachments and HTML.
I wrote this class to integrate more functionality for classes like Access_user or DB_cart and others using PHP’s mail function. But the class can be also used in every web application where the standard text mail is not enough and where attachments are needed.
The class has no upload function, use for some file upload functionality the Easy Upload Class. Find in the current class functions like: an e-mail address check (using regular expressions and testing the address against a MX record), All header rows are filtered to prevent spamming via web mail forms, the class can handle multiple attachment. Since version 1.2 is html mail with inline attachments supported.
Enhancements:
- The class has been changed into a full featured HTML mailer class, including HTML mail with (inline) attachments, an alternative text format, inline attachments mixed with external attachments, and much more.
- Most methods were changed and the structure of how an objects is defined was updated.
- Mail scripts that previously used this class need to be updated.