Java
Send HTML Email with Embedded Image Loaded from Memory

Demonstrates how to compose an HTML email with an embedded image where the image data is loaded directly from memory.
Chilkat Java Downloads

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[])
  {
    boolean success = false;

    //  This example requires the Chilkat API to have been previously unlocked.
    //  See Global Unlock Sample for sample code.

    //  First load image data into memory.
    //  This example loads image data from a file.
    //  However, your application could get the image data from any other source, such as
    //  from a database.
    CkFileAccess fac = new CkFileAccess();
    CkByteData imageBytes = new CkByteData();
    success = fac.ReadEntireFile("qa_data/jpg/starfish.jpg",imageBytes);

    //  The mailman object is used for sending and receiving email.
    CkMailMan mailman = new CkMailMan();

    //  Use your SMTP server hostname.  This example uses office365, but it could be any SMTP server..
    mailman.put_SmtpHost("outlook.office365.com");
    mailman.put_SmtpPort(587);
    mailman.put_StartTLS(true);

    //  Set the SMTP login/password
    mailman.put_SmtpUsername("OFFICE365-SMTP-LOGIN");
    mailman.put_SmtpPassword("OFFICE365-SMTP-PASSWORD");

    //  Create a new email object
    CkEmail email = new CkEmail();
    email.put_Subject("HTML Email with Image Loaded from In-Memory Bytes");
    email.put_From("Chilkat Support <my-office365-user@mydomain.com>");
    email.AddTo("Chilkat Support","support@chilkatsoft.com");

    String contentIdStarfish = email.addRelatedData("starfish.jpg",imageBytes);
    if (email.get_LastMethodSuccess() != true) {
        System.out.println(email.lastErrorText());
        return;
        }

    //  The src attribute for the image tag is set to the contentIdStarfish:
    CkStringBuilder sbHtml = new CkStringBuilder();
    sbHtml.Append("<html><body><p>This is an HTML email with an embedded image.</p>");
    sbHtml.Append("<p><img src=\"cid:CONTENT_ID_STARFISH\" /></p></body></html>");
    int numReplacements = sbHtml.Replace("CONTENT_ID_STARFISH",contentIdStarfish);

    email.SetHtmlBody(sbHtml.getAsString());

    success = mailman.SendEmail(email);
    if (success != true) {
        System.out.println(mailman.lastErrorText());
        }
    else {
        System.out.println("Mail Sent!");
        }
  }
}