Java

Count the Attached Messages in an Email

Demonstrates the read-only Chilkat Email.NumAttachedMessages property, which is the number of embedded emails represented by message/rfc822 MIME parts. These are counted separately from ordinary attachments and related items, and their indexes are zero-based. This example builds an inner email, attaches it to an outer email as a nested message, and prints the count.

Background: When you "forward as attachment," many mail clients embed the original message as a complete nested email rather than quoting its text. In MIME this appears as a message/rfc822 part — an entire email (its own headers and body) tucked inside the carrier message. Chilkat distinguishes three kinds of enclosed content: ordinary attachments (NumAttachments), inline related items (NumRelatedItems), and these nested messages (NumAttachedMessages). Use GetAttachedEmail to pull an embedded message into its own Email object.

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Chilkat2 Java

import com.chilkatsoft.chilkat2.Email;

public class ChilkatExample {

    public static void main(String[] args) {
        // Demonstrates the read-only Email.NumAttachedMessages property, which is the
        // number of embedded emails (message/rfc822 MIME parts) contained in the email.

        // Create an inner email that we'll attach as a complete nested message.
        Email innerEmail = new Email();
        innerEmail.setSubject("I am an attached message");
        innerEmail.setBody("This entire email is nested inside another email.");
        innerEmail.setFrom("alice@example.com");
        innerEmail.addTo("Bob", "bob@example.com");

        // Create the outer email and attach the inner email directly as a
        // message/rfc822 part.  AttachEmail attaches a copy of the inner email.
        Email email = new Email();
        email.setSubject("Outer email with an attached message");
        email.setBody("See the attached email.");
        email.attachEmail(innerEmail);

        System.out.println("NumAttachedMessages = " + email.getNumAttachedMessages());
    }
}