(Swift 3,4,5...) Copy an Email from One Mailbox to Another

Copies an email from one IMAP folder to another. After running this example, copies of the email will be present in both source and destination folders.

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.

    // This example copies an email from one mailbox to another.
    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("***", password: "***")
    if success != true {
        print("\(imap.lastErrorText!)")
        return
    }

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

    var messageSet: CkoMessageSet?
    var fetchUids: Bool = true

    // Get the message IDs for all emails having "Re:" in the subject.
    messageSet = imap.search("SUBJECT Re:", bUid: fetchUids)
    if imap.lastMethodSuccess != true {
        print("\(imap.lastErrorText!)")
        return
    }

    // Copy the messages from "Inbox.testing.a" to "Inbox.testing.b" in one call to CopyMultiple:
    success = imap.copyMultiple(messageSet, copyToMailbox: "Inbox.testing.b")
    if success != true {
        print("\(imap.lastErrorText!)")
        return
    }

    // Alternatively, loop over each message in the set and
    // copy each separately:
    var i: Int
    var n: Int
    n = messageSet!.count.intValue
    if n > 0 {
        for i = 0; i <= n - 1; i++ {
            var msgId: Int = messageSet!.getId(i).intValue
            var isUid: Bool = messageSet!.hasUids
            success = imap.copy(msgId, bUid: isUid, copyToMailbox: "Inbox.testing.c")
            if success != true {
                print("\(imap.lastErrorText!)")
                return
            }

        }

    }

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

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

    messageSet = nil

}