JavaScript

Save an Email to a .eml File

Demonstrates the Chilkat Email.SaveEml method, which converts the email object to EML and saves it to a file. An EML file contains the complete RFC822/MIME message — headers, bodies, related items, and attachments. This example builds a message and saves it.

Background: Saving as .eml writes the message in the universal MIME format that virtually every mail client can open, making it ideal for archiving, sharing, or handing a message to another program. It is the counterpart to LoadEml. A saved .eml also retains Chilkat's CKX- metadata headers (a way to store your own metadata with the email; they are always stripped before an email is sent), so .eml is the recommended way to persist a message even within Chilkat-based software. A separate Chilkat XML format (SaveXml) exists as an alternative, but offers no metadata advantage over .eml.

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

var success = false;

//  Demonstrates the SaveEml method, which converts the email object to EML and saves it to
//  a file.  An EML file contains the complete RFC822/MIME message, including headers,
//  bodies, related items, and attachments.

var email = new CkEmail();
email.Subject = "Save as EML";
email.From = "alice@example.com";
email.AddTo("Bob","bob@example.com");
email.Body = "Hello, this message will be saved as a .eml file.";

//  Save the email to a .eml file.
success = email.SaveEml("qa_output/message.eml");
if (success == false) {
    console.log(email.LastErrorText);
    return true;
}

console.log("Saved to message.eml.");

//  Note: The path "qa_output/..." is a relative local filesystem path,
//  relative to the current working directory of the running application.