(Swift 2) Process Bounced Email in IMAP

Reads an IMAP mailbox and determines which emails are bounces.

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()
    let bounce = CkoBounce()

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

    // Login
    success = imap.Login("admin@chilkatsoft.com", password: "myPassword")
    if success != true {
        print("\(imap.LastErrorText)")
        return
    }

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

    var messageSet: CkoMessageSet?
    // We can choose to fetch UIDs or sequence numbers.
    var fetchUids: Bool = true
    // Get the message IDs of all the emails in the mailbox
    messageSet = imap.Search("ALL", bUid: fetchUids)
    if imap.LastMethodSuccess == false {
        print("\(imap.LastErrorText)")
        return
    }

    // Fetch the emails into a bundle object:
    var bundle: CkoEmailBundle?
    bundle = imap.FetchBundle(messageSet)
    if imap.LastMethodSuccess == false {
        messageSet = nil
        print("\(imap.LastErrorText)")
        return
    }

    // Loop over the bundle and display the FROM and SUBJECT of each.
    var i: Int = 0
    var numEmails: Int = bundle!.MessageCount.intValue
    while i < numEmails {
        var email: CkoEmail? = bundle!.GetEmail(i)

        success = bounce.ExamineEmail(email)

        print("Subject: \(email!.Subject)")
        print("Bounce Type = \(bounce.BounceType.intValue), email address = \(bounce.BounceAddress)")

        email = nil

        i = i + 1
    }

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

    messageSet = nil
    bundle = nil

}