(Swift 3,4,5...) SMTP Send Raw Command

Demonstrates how to send a raw command to the SMTP server after the connecting and authenticating.

Chilkat Downloads for the Swift Programming Language MAC OS X (Cocoa) Objective-C/Swift Libs iOS Objective-C/Swift Libs

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

    let mailman = CkoMailMan()!

    mailman.smtpHost = "smtp.mail.us-west-2.awsapps.com"
    mailman.smtpSsl = true
    mailman.smtpPort = 465

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

    mailman.smtpUsername = "john@example.com"
    mailman.smtpPassword = "the_password"

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

    print("Authenticated!")

    // Send the "EHLO" command again to get the multi-line response that includes the SMTP capabilities.
    // The capabilities are the lines in the response that begin with "250-".
    var responseStr: String? = mailman.smtpSendRawCommand("EHLO client.example.com", charset: "utf-8", bEncodeBase64: false)
    if mailman.lastMethodSuccess == false {
        print("\(mailman.lastErrorText!)")
        return
    }

    print("\(responseStr!)")

    // A sample response:

    // 250-smtp.us-west-2.mail.awsapps.com
    // 250-8BITMIME
    // 250-AUTH PLAIN LOGIN
    // 250 Ok

}