Java

Repair MIME Formatting Problems in an Email

Demonstrates the Chilkat Email.ApplyFixups method, which repairs selected MIME-formatting problems commonly found in email produced by other software. The argument is a comma-separated list of fixup keywords. The currently defined keyword is FixRelated, which relocates HTML-related items (such as embedded images) into the appropriate MIME structure so they are not incorrectly presented as ordinary attachments. This example loads an email and applies that fixup.

Background: Not every mail program builds strictly correct MIME. A common defect is placing an inline image as a loose attachment instead of nesting it in a multipart/related enclosure, which makes it show up as a downloadable file rather than displaying in the HTML. ApplyFixups corrects such structural issues so the message renders as intended.

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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[])
  {
    boolean success = false;

    //  Demonstrates the ApplyFixups method, which repairs selected MIME-formatting problems
    //  commonly found in email produced by other software.  The argument is a comma-separated
    //  list of fixup keywords.

    CkEmail email = new CkEmail();

    success = email.LoadEml("qa_data/eml/message.eml");
    if (success == false) {
        System.out.println(email.lastErrorText());
        return;
        }

    //  Apply the "FixRelated" fixup, which relocates HTML-related items (such as embedded
    //  images) into the proper MIME structure so they are not shown as ordinary attachments.
    success = email.ApplyFixups("FixRelated");
    if (success == false) {
        System.out.println(email.lastErrorText());
        return;
        }

    System.out.println("Applied MIME fixups.");

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