(Swift 2) Fetch Oldest/Newest IMAP Email

Emails may be downloaded by sequence number. Assuming the selected mailbox is not empty, the oldest email is at sequence number 1, and the newest email is at sequence number N. The FetchSingle method may be used to download by sequence number.

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 imap = CkoImap()

    // Connect to an IMAP server.
    // Use TLS
    imap.Ssl = true
    imap.Port = 993
    var success: Bool = imap.Connect("mail.testemail.net")
    if success != true {
        print("\(imap.LastErrorText)")
        return
    }

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

    // Select an IMAP mailbox
    success = imap.SelectMailbox("Inbox")
    if success != true {
        print("\(imap.LastErrorText)")
        return
    }

    // After selecting a mailbox, the NumMessages property
    // contains the number of emails in the selected mailbox.
    var n: Int
    n = imap.NumMessages.intValue

    if n > 0 {

        // The oldest email is always at sequence number 1.
        var isUid: Bool = false

        var oldestEmail: CkoEmail?
        oldestEmail = imap.FetchSingle(1, bUid: isUid)
        if imap.LastMethodSuccess == true {

            // Display the From and Subject
            print("\(oldestEmail!.FromAddress)")
            print("\(oldestEmail!.Subject)")

            print("--")
            oldestEmail = nil
        }

        // The newest email is at sequence number N:
        var newestEmail: CkoEmail?
        newestEmail = imap.FetchSingle(n, bUid: isUid)
        if imap.LastMethodSuccess == true {

            // Display the From and Subject
            print("\(newestEmail!.FromAddress)")
            print("\(newestEmail!.Subject)")

            newestEmail = nil
        }

    }

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

}