(Swift 2) Delete All IMAP Email

Demonstrates two ways to delete all email in a mailbox on an IMAP server.

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.

    let imap = CkoImap()

    // Turn on session logging:
    imap.KeepSessionLog = true

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

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

    var messageSet: CkoMessageSet?

    // Get the complete set of Uids for email in the selected mailbox.
    messageSet = imap.GetAllUids()
    if imap.LastMethodSuccess != true {
        print("\(imap.LastErrorText)")
        return
    }

    // Set the Deleted flag for each message.
    // (ExpungeAndClose must be called to finalize the delete.)
    success = imap.SetFlags(messageSet, flagName: "Deleted", value: 1)
    if success != true {
        print("\(imap.LastErrorText)")
        return
    }

    // Alternatively, the Deleted flag may be set for each UID
    // individiually, but this is less efficient:
    var i: Int
    var n: Int = messageSet!.Count.intValue
    for i = 0; i <= n - 1; i++ {
        success = imap.SetFlag(messageSet!.GetId(i).intValue, bUid: messageSet!.HasUids, flagName: "Deleted", value: 1)
        if success != true {
            print("\(imap.LastErrorText)")
            return
        }

    }

    // Expunge and close the mailbox.
    success = imap.ExpungeAndClose()
    if success != true {
        print("\(imap.LastErrorText)")
        return
    }

    // Display the session log.
    print("\(imap.SessionLog)")

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

    messageSet = nil

}