Swift

Explicitly Connect to the SMTP Server

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.

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Swift


func chilkatTest() {
    var success: Bool = 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.

    let mailman = CkoMailMan()!

    //  Configure the SMTP server connection.
    mailman.smtpHost = "smtp.example.com"
    mailman.smtpPort = 465
    mailman.smtpSsl = true

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

    success = mailman.smtpConnect()
    if success == false {
        print("\(mailman.lastErrorText!)")
        return
    }

    print("Connected to the SMTP server.")

}