Sends a text or HTML email via the given SMTP server or a default one with attachment (bytes) if any. Reciptients are in "Name &lt;Email&gt; " format and semicolon separated. Returns <b>OK</b> or <b>Error: explanation</b>. Sends a text or HTML email via the given SMTP server or a default one with attachment getted from given URL (if any). Reciptients are in "Name &lt;Email&gt;" format and semicolon separated. Returns <b>OK</b> or <b>Error: explanation</b>. Sends a text or HTML email via the given SMTP server or a default one. Returns <b>OK</b> or <b>Error: explanation</b>. Sends a text or HTML email via the given SMTP server or a default one. Returns <b>OK</b> or <b>Error: explanation</b>. Sends a text or HTML email via the given SMTP server or a default one. Returns <b>OK</b> or <b>Error: explanation</b>. Sends an email and returns the results log directly from the SMTP server. Returns the name of the SMTP server for a given domain (or <b>Error: ...</b> if server name cannot be retrieved). Returns <b>true</b> if the given email address corresponds to a valid account, <b>false</b> if address is not valid or <b>Error: ...</b> if the address could not be checked. Takes an email address and password and validates the password against the user's POP server. If the password is correct, the method will return <b>OK</b>, if not it will return an error code. Built-in diagnostics - This method a reduced or completed suite of tests on all web services included in this module. For each test run, the method returns a description of the test, its expected behaviour and actual behaviour or result. Built-in diagnostics - This method runs a the quick tests suite to determine if the module is up and running properly. This method is normally used by automatic tools (like OpenView or WhatsUp) to monitor the services. The service returns <b>true</b> if everything works fine. A collection of Email related utilities.