(Go) SMTP NTLM Authentication

See more SMTP Examples

Demonstrates how to specify NTLM authentication for sending email via SMTP.

Chilkat Go Downloads Go Package for Windows, MacOS, Linux, Alpine Linux, Solaris

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

    mailman := chilkat.NewMailMan()

    // Specify your particular mail server's SMTP settings.
    mailman.SetSmtpHost("smtp.my_mail_server.com")
    mailman.SetSmtpPort(587)
    mailman.SetStartTLS(true)

    // This assumes you know your SMTP server supports NTLM authentication.
    // To explicitly request NTLM authentication, set the SmtpAuthMethod property = "ntlm".
    mailman.SetSmtpAuthMethod("ntlm")

    // Note: Normally you should avoid setting the SmtpAuthMethod.
    // SMTP servers tell the connecting client the authentication methods it will accept when the initial connection is made.
    // Chilkat will automatically use this information to select and use the most secure auth method supported by the server.

    useCurrentWindowsUser := true

    if useCurrentWindowsUser == true {
        // If you are running on Windows, and you wish for the NTLM credentials of the current logged-on Windows user to be used,
        // set the username and password to the string "default"
        mailman.SetSmtpUsername("default")
        mailman.SetSmtpPassword("default")
    }
    else {
        // Explicitly specify the SMTP username/password
        // The SMTP username is your email account username, which is often your email address.
        mailman.SetSmtpUsername("your_smtp_username_or_email_address")
        mailman.SetSmtpPassword("your_password")
    }

    email := chilkat.NewEmail()

    email.SetSubject("This is a test")
    email.SetBody("This is a test")
    // Don't forget to change this to use your email addresses..
    email.SetFrom("Chilkat Support <support@chilkatsoft.com>")
    success := email.AddTo("Chilkat Admin","admin@chilkatsoft.com")
    // To add more recipients, call AddTo, AddCC, or AddBcc once per recipient.

    success = mailman.SendEmail(email)
    if success != true {
        fmt.Println(mailman.LastErrorText())
        mailman.DisposeMailMan()
        email.DisposeEmail()
        return
    }

    success = mailman.CloseSmtpConnection()
    if success != true {
        fmt.Println("Connection to SMTP server not closed cleanly.")
    }

    fmt.Println("Mail Sent!")

    mailman.DisposeMailMan()
    email.DisposeEmail()