Java

Set the Reply-To Address of an Email

Demonstrates the Chilkat Email.ReplyTo property, which sets the MIME Reply-To header. This header automatically defaults to the From address, so you only set it when replies should go to a different address. There is usually a single Reply-To address, but you can supply a comma-separated list for several. Setting this changes only the Reply-To header — it does not change the SMTP envelope sender or the visible From header.

Background: When you hit "Reply," most mail clients address the response to the message's Reply-To header if present, otherwise to From. This is useful when the sending address is not the right destination for responses — for example, a newsletter sent from noreply@ but with Reply-To pointing at a monitored support inbox, or a message sent on someone's behalf that should be answered to a different person.

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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 Email.ReplyTo property, which sets the Reply-To header field.
    //  Reply-To defaults to the From address, so you only set this when replies should
    //  go somewhere different.

    CkEmail email = new CkEmail();
    email.put_From("sales@example.com");

    //  Replies should be directed to a different address than the From address.
    email.put_ReplyTo("support@example.com");

    System.out.println("ReplyTo = " + email.replyTo());

    //  For multiple reply addresses, use a comma-separated list.
    email.put_ReplyTo("support@example.com, help@example.com");
    System.out.println("ReplyTo = " + email.replyTo());
  }
}