Swift Requires Chilkat v11.0.0+

Fetch Single Email by UID or Sequence Number

Assuming the UID is known, download a single email by UID from an IMAP mail server. Swift

func chilkatTest() {
    var success: Bool = false

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

    let imap = CkoImap()!

    //  Connect to an IMAP server.
    //  Use TLS
    imap.ssl = true
    imap.port = 993
    success = imap.connect(hostname: "imap.example.com")
    if success == false {
        print("\(imap.lastErrorText!)")
        return
    }

    //  Login
    success = imap.login(login: "***", password: "***")
    if success == false {
        print("\(imap.lastErrorText!)")
        return
    }

    //  Select an IMAP mailbox
    success = imap.selectMailbox(mailbox: "Inbox")
    if success == false {
        print("\(imap.lastErrorText!)")
        return
    }

    let email = CkoEmail()!

    var uid: Int = 2014
    var isUid: Bool = true

    success = imap.fetchEmail(headerOnly: false, msgId: uid, bUid: isUid, email: email)
    if success == false {
        print("\(imap.lastErrorText!)")
        return
    }

    //  Display the From and Subject
    print("\(email.fromAddress!)")
    print("\(email.subject!)")

    //  Display the Body property, which is the default body.
    //  If an email has an HTML body, the Body property contains
    //  the HTML source.  Otherwise it contains the plain-text
    //  body.
    print("---- EMAIL BODY ----")
    print("\(email.body!)")
    print("--------------------")

    //  Display the recipients:
    var j: Int
    for j = 0; j <= email.numTo.intValue - 1; j++ {
        print("\(email.get(toName: j)!), \(email.get(toAddr: j)!)")
    }

    for j = 0; j <= email.numCC.intValue - 1; j++ {
        print("\(email.getCcName(index: j)!), \(email.getCcAddr(index: j)!)")
    }

    //  Show the total size of the email, including body and attachments:
    print("\(email.size.intValue)")

    //  When a full email is downloaded, we would use the
    //  email.NumAttachments property in conjunction with the
    //  email.GetMailAttach* methods.
    //  However, when an email object contains only the header,
    //  we need to access the attachment info differently:
    var numAttach: Int = imap.getMailNumAttach(email: email).intValue
    print("\(numAttach)")

    for j = 0; j <= numAttach - 1; j++ {
        print("\(imap.getMailAttachFilename(email: email, attachIndex: j)!)")
        var attachSize: Int = imap.getMailAttachSize(email: email, attachIndex: j).intValue
        print("    size = \(attachSize) bytes")
    }

    print("--")

    //  Disconnect from the IMAP server.
    success = imap.disconnect()

}