Explicitly Connect to the SMTP Server

See more SMTP Examples

Demonstrates the Chilkat MailMan.SmtpConnect method, which explicitly connects to the SMTP server. If SSL/TLS is required by the current property settings, the secure TLS channel is established as part of connecting. This example opens the connection.

Background: SmtpConnect performs just the connect (and TLS handshake) step, without authenticating — useful when you want fine-grained control over the connection lifecycle, or to separate connecting from authenticating (SmtpAuthenticate) for diagnostics. For everyday sending you don't need to call it: SendEmail connects automatically.

Chilkat Go Downloads

Download Chilkat for Go

    success := false

    //  Demonstrates the MailMan.SmtpConnect method, which explicitly connects to the SMTP server.
    //  If SSL/TLS is required by the current property settings, the secure channel is established
    //  as part of connecting.

    mailman := chilkat.NewMailMan()

    //  Configure the SMTP server connection.
    mailman.SetSmtpHost("smtp.example.com")
    mailman.SetSmtpPort(465)
    mailman.SetSmtpSsl(true)

    //  Explicitly connect to the SMTP server (does not authenticate).

    success = mailman.SmtpConnect()
    if success == false {
        fmt.Println(mailman.LastErrorText())
        mailman.DisposeMailMan()
        return
    }

    fmt.Println("Connected to the SMTP server.")

    mailman.DisposeMailMan()