Java

Get the Complete MIME Header of an Email

Demonstrates the read-only Chilkat Email.Header property, which returns the complete MIME header generated from the current in-memory email object. Because this property is read-only, you modify individual fields through their corresponding properties or header methods rather than assigning to Header directly. This example sets a subject, from, and recipient, then prints the full MIME header.

Background: A MIME email is made of two parts separated by a single blank line: the header and the body. The header is a list of Field-Name: value lines — familiar ones include From, To, Subject, and Date, plus structural fields like Content-Type and MIME-Version. Reading the raw header is useful for debugging exactly what a message will look like on the wire.

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Java

import com.chilkatsoft.*;

public class ChilkatExample {

  static {
    try {
        System.loadLibrary("chilkat");
    } catch (UnsatisfiedLinkError e) {
      System.err.println("Native code library failed to load.\n" + e);
      System.exit(1);
    }
  }

  public static void main(String argv[])
  {
    //  Demonstrates the read-only Email.Header property, which returns the
    //  complete MIME header of the email, generated from the current in-memory
    //  email object.

    CkEmail email = new CkEmail();

    email.put_Subject("Test subject");
    email.put_From("mary@example.com");
    email.AddTo("Joe","joe@example.com");

    //  Header is read-only.  Modify individual fields through their properties
    //  or header methods rather than assigning to Header.
    System.out.println(email.header());
  }
}