JavaScript

Set the X-Mailer Header of an Email

Demonstrates the Chilkat Email.Mailer property, which identifies the email software that sent the email. It corresponds to the MIME X-Mailer header. This example sets the mailer string and shows it in the generated MIME.

Background: X-Mailer is an optional, informational header — the X- prefix marks it as non-standard — that names the program used to compose or send the message. Mail servers do not require it and it has no effect on delivery; it is mainly useful for diagnostics and analytics. Because it is self-reported, it is trivially spoofable and should never be relied on for security decisions.

Note

This example is intended for running within a Chilkat.Js embedded JavaScript engine. All Chilkat JavaScript examples require Chilkat v11.4.0 or greater.

JavaScript

//  Demonstrates the Email.Mailer property, which identifies the email software
//  that sent the email.  This corresponds to the MIME X-Mailer header.

var email = new CkEmail();

email.Mailer = "My Custom Mailer 1.0";

console.log("Mailer = " + email.Mailer);

//  The X-Mailer header appears in the generated MIME.
console.log(email.GetMime());