(Swift 3,4,5...) SMTP Connect and Authenticate

Demonstrates how to connect and then authenticate with an SMTP server.

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!")

    print("\(mailman.smtpSessionLog!)")

    // Sample session log:

    // 220 smtp.us-west-2.mail.awsapps.com ESMTP Amazon WorkMail SMTP Service
    // EHLO SLICE<CRLF>
    // 250-smtp.us-west-2.mail.awsapps.com
    // 250-8BITMIME
    // 250-AUTH PLAIN LOGIN
    // 250 Ok
    // AUTH LOGIN<CRLF>
    // 334 VXNlcm5hbWU6
    // am9obkBleGFtcGxlLmNvbQ==<CRLF>
    // 334 UGFzc3dvcmQ6
    // {PasswordOrCredentials}
    // 235 Authentication successful.

}