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Swift 3,4,5... Examples

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(Swift 3,4,5...) Get IMAP UID from Email Header

Demonstrates how to get the IMAP UID from an email header. After fetching an email or header using IMAP, the UID is contained in the ckx-imap-uid header field.

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()!

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

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

    var fetchUids: Bool = true
    // Get the message UIDs of all the emails in the mailbox
    var messageSet: CkoMessageSet? = imap.search("ALL", bUid: fetchUids)
    if imap.lastMethodSuccess != true {
        print("\(imap.lastErrorText!)")
        return
    }

    var bundle: CkoEmailBundle? = imap.fetchHeaders(messageSet)
    if imap.lastMethodSuccess != true {
        messageSet = nil
        print("\(imap.lastErrorText!)")
        return
    }

    // The UID of each fetched email header is available 
    // in the ckx-imap-uid header field.
    var i: Int = 0
    var szBundle: Int = bundle!.messageCount.intValue
    let msOneMsg = CkoMessageSet()!
    while i < szBundle {
        var email: CkoEmail? = bundle!.getEmail(i)

        // Build a message set containing one UID
        var uidStr: String? = email!.getHeaderField("ckx-imap-uid")
        msOneMsg.fromCompactString(uidStr)

        // Move this message to some other folder.
        success = imap.move(msOneMsg, destFolder: "someOtherFolder")
        if success != true {
            print("\(imap.lastErrorText!)")
            // Exit the loop...
            i = szBundle
        }

        email = nil
        i = i + 1
    }

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

    messageSet = nil
    bundle = nil

}

 

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