Node.js

Verify Email Recipients

A way to possibly determine valid/invalid email addresses. I would recommend being very careful about doing this because your IP address may be flagged as a potential spammer by the mail server (because you are probing for valid/invalid email addresses). This Chilkat functionality existed for many years, before this kind of activity became a problem. The functionality remains only because it is useful for some to test with their own SMTP servers. Node.js

NODEJS_PRELUDE

function chilkatExample() {

    var success = false;

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

    var mailman = new chilkat.MailMan();

    // SMTP connection settings...
    mailman.SmtpHost = "smtp.example.com";
    mailman.SmtpUsername = "MY_SMTP_USERNAME";
    mailman.SmtpPassword = "MY_SMTP_PASSWORD";
    mailman.SmtpSsl = true;
    mailman.SmtpPort = 465;

    // Create a new email object
    var email = new chilkat.Email();

    email.Subject = "This is a test";
    email.Body = "This is a test";
    email.From = "myemail@example.com";
    success = email.AddTo("person1","person1@example.com");
    success = email.AddTo("person2","person2@example.com");
    success = email.AddTo("person3","person3@example.com");
    // The SMTP server smtp.example.com won't know anything about an email address @somewhere_else.com
    success = email.AddTo("person3","person4@somewhere_else.com");
    // ...

    // Verify recipients.
    // **** See the warning about using this API method in the description above.
    // (An SMTP server only knows valid email address for its own domain.  For example,
    // smtp.example.com *may* only know if person1@example.com is valid or invalid, but does
    // not know anything about the validity of email addresses having other domains.)
    var badAddrs = new chilkat.StringArray();
    success = mailman.VerifyRecips(email,badAddrs);
    if (success !== true) {
        console.log(mailman.LastErrorText);
        return;
    }

    var i = 0;
    while (i < badAddrs.Count) {
        console.log(badAddrs.GetString(i));
        i = i+1;
    }

    console.log("done.");

}

chilkatExample();