(Swift 3,4,5...) Send Email with a vCard

Demonstrates how to create a simple email, attach a vcard, and send it.

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.

    // The mailman object is used for sending and receiving email.
    let mailman = CkoMailMan()!

    // Set the SMTP server.
    mailman.smtpHost = "smtp.chilkatsoft.com"

    // Set the SMTP login/password (if required)
    mailman.smtpUsername = "myUsername"
    mailman.smtpPassword = "myPassword"

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

    email.subject = "This is a vcard test"
    email.body = "This is a vcard test"
    email.from = "Chilkat Admin <admin@chilkatsoft.com>"
    var success: Bool = email.add(to: "Chilkat Support", emailAddress: "support@chilkatsoft.com")
    // To add more recipients, call AddTo, AddCC, or AddBcc once per recipient.

    // A vCard is an email attachment having a Content-Type = "text/x-vcard".
    // Call AddStringAttachment to add a vcard from an in-memory string.
    // The filename should have a ".vcf" file extension.  Chilkat will automatically
    // recognize it and set the content-type to "text/x-vcard";

    // Your application is responsible for providing the vcard formatted string.  For example:
    // See http://en.wikipedia.org/wiki/VCard
    // 
    // begin:vcard
    // fn:Matt Smith
    // n:Smith;Matt
    // org:Chilkat Software, Inc.
    // tel;work:630-784-9670
    // url:http://www.chilkatsoft.com
    // version:2.1
    // end:vcard

    var vcard: String? = "begin:vcard ..."
    success = email.addStringAttachment("admin.vcf", str: vcard)
    if success != true {
        print("\(email.lastErrorText!)")
        return
    }

    // Call SendEmail to connect to the SMTP server and send.
    // The connection (i.e. session) to the SMTP server remains
    // open so that subsequent SendEmail calls may use the
    // same connection.  
    success = mailman.send(email)
    if success != true {
        print("\(mailman.lastErrorText!)")
        return
    }

    // Some SMTP servers do not actually send the email until 
    // the connection is closed.  In these cases, it is necessary to
    // call CloseSmtpConnection for the mail to be  sent.  
    // Most SMTP servers send the email immediately, and it is 
    // not required to close the connection.  We'll close it here
    // for the example:
    success = mailman.closeSmtpConnection()
    if success != true {
        print("Connection to SMTP server not closed cleanly.")
    }

    print("Mail with vCard Sent!")

}