(Swift 3,4,5...) GMail SMTP port 587 with "less secure" Password Authentication

Send email using GMail's SMTP server on port 587 (SSL via STARTTLS).

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

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

    let mailman = CkoMailMan()!
    var success: Bool

    // Use the GMail SMTP server
    // This example assumes your GMail account allows for "less secure apps" to use 
    // SMTP username/password authentication.
    // For OAuth2 authentication, see GMail SMTP with OAuth2 Authentication
    mailman.smtpHost = "smtp.gmail.com"
    mailman.smtpPort = 587
    mailman.startTLS = true

    // Set the SMTP login/password.
    mailman.smtpUsername = "chilkat.support"
    mailman.smtpPassword = "myPassword"

    // Create a new email object
    let email = CkoEmail()!

    email.subject = "This is a test"
    email.body = "This is a test"
    email.from = "Chilkat Support <chilkat.support@gmail.com>"
    email.add(to: "Chilkat", emailAddress: "support@chilkatsoft.com")

    success = mailman.send(email)
    if success != true {
        print("\(mailman.lastErrorText!)")
        return
    }

    print("Email sent.")

}