Verify Email Addresses with VerifyRecipients

Verify email recipients. This example demonstrates the usage of the VerifyRecipients method.

Please see this blog post for more information VerifyRecipients -- Validating Email Addresses

Download Chilkat Java Library

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

    //  Any string argument automatically begins the 30-day trial.
    boolean success;
    success = mailman.UnlockComponent("30-day trial");
    if (success != true) {
        System.out.println("Component unlock failed");
        return;
    }

    //  Set the SMTP server.
    //  This code was tested against both mail.chilkatsoft.com
    //  and smtp.comcast.net

    //  mailman.SmtpHost = "mail.chilkatsoft.com";
    //  mailman.SmtpUsername = "admin@chilkatsoft.com";
    //  mailman.SmtpPassword = "****";

    mailman.put_SmtpHost("smtp.comcast.net");

    //  Create an email object.
    //  We'll never actually send this email.  It's only used
    //  to test the recipients.
    CkEmail email = new CkEmail();

    email.put_Subject("This is a test");
    email.put_Body("This is a test");
    email.put_From("Chilkat Support <support@chilkatsoft.com>");

    //  Add recipients to be checked.
    //  (When this was tested, a_real_person was replaced with
    //  a valid email address.)
    email.AddTo("A Real Person","a_real_person@comcast.net");
    email.AddTo("Testing","doesNotExist7434@comcast.net");
    email.AddTo("Admin","admin@chilkatsoft.com");
    email.AddTo("Not Exist","doesNotExist@chilkatsoft.com");
    email.AddCC("Not Exist","DoesNotExist7213@gmail.com");
    email.AddBcc("Exists","chilkat.support@gmail.com");

    //  NOTE: A mail server can only verify the email addresses
    //  specific to it's domain.  Therefore, when using smtp.comcast.net,
    //  only comcast.net email addresses will be flagged as invalid,
    //  and when using mail.chilkatsoft.com, only chilkatsoft.com
    //  email addresses are flagged as invalid.

    //  Add all bad email addresses to saBadAddrs:
    CkStringArray saBadAddrs = new CkStringArray();
    success = mailman.VerifyRecipients(email,saBadAddrs);
    if (success != true) {
        System.out.println(mailman.lastErrorText());

    }
    else {
        //  List the invalid email addresses:
        if (saBadAddrs.get_Count() > 0) {
            int i;
            int n;
            n = (int) saBadAddrs.get_Count();
            for (i = 0; i <= n - 1; i++) {
                System.out.println(saBadAddrs.getString(i));
            }

            //  Examine the SMTP session log to see how the email
            //  addresses were caught:
            System.out.println(mailman.smtpSessionLog());
        }
    }

  }
}