var imapsession:MCOIMAPSession = MCOIMAPSession()

func prepareImapSession()
{
    // CONFIGURE THAT DEPENDING OF YOUR NEEDS
    imapsession.hostname = imapHostname // String
    imapsession.username = userName // String
    imapsession.password = password // String
    imapsession.port = portIMAP // UInt32 number
    imapsession.authType = MCOAuthType.saslLogin
    imapsession.connectionType = MCOAuthType.saslLogin
}


func useImapWithUIDS(startPoint start: UInt64, whatProtocol wProtocol: String)
{
    // There is more than one option here, explore depending of your needs
    let requestKind : MCOIMAPMessagesRequestKind =  .headers

    let folder : String = "INBOX"

    // HERE ALSO EXPLORE DEPENDING OF YOUR NEEDS, RANGE IT IS THE RANGE OF THE UIDS THAT YOU WANT TO FETCH, I SUGGEST TO YOU TO CHANGE THE  // NUMBER ONE IF YOU HAVE A LOWER BOUND TO FETCH EMAIL
    let uids : MCOIndexSet = MCOIndexSet(range: MCORangeMake(1, UINT64_MAX))

    let fetchOperation  = imapsession.fetchMessagesOperation(withFolder: folder, requestKind: requestKind, uids: uids)

    fetchOperation?.start
        { (err, msg, vanished) -> Void in

            if (err != nil)
            {
                error = err
                NSLog((err?.localizedDescription)!)
            }
            else
            {

                guard let msgs = msg as? [MCOIMAPMessage]
                    else
                {
                    print("ERROR GETTING THE MAILS")
                    return
                }

                for i in 0..<msgs.count
                {
                    // THE SUBJECT
                    let subject = msgs[i].header.subject

                    // THE uid for this email. The uid is unique for one email
                    let uid = msgs[i].uid

                    // The sequenceNumber like the nomber say it is the sequence for the emails in the INBOX from the first one                                     // (sequenceNumber = 1) to the last one , it not represent always the same email. Because if you delete one email then                              //next one will get the sequence number of that email that was deleted
                    let sequenceNumber = msgs[i].sequenceNumber

                }
            }
     }


 // MARK: - EXTRACT THE CONTENT OF ONE EMAIL, IN THIS FUNCTION YOU NEED THE uid, THE UNIQUE NUMBER FOR ONE EMAIL
func useImapFetchContent(uidToFetch uid: UInt32)
{

    let operation: MCOIMAPFetchContentOperation = imapsession.fetchMessageOperation(withFolder: "INBOX", uid: uid)
    operation.start { (Error, data) in
        if (Error != nil)
        {
            NSLog("ERROR")
            return
        }

        let messageParser: MCOMessageParser = MCOMessageParser(data: data)

        // IF YOU HAVE ATTACHMENTS USE THIS
        let attachments = messageParser.attachments() as? [MCOAttachment]

        // THEN YOU NEED THIS PROPERTIE, IN THIS EXAMPLE I TAKE THI FIRST, USE WHAT EVER YOU WANT
        let attachData = attachments?.first?.data

        // FOR THE MESSAGEPARSER YOU CAN EPLORE MORE THAN ONE OPTION TO OBTAIN THE TEXT
        let msgPlainBody = messageParser.plainTextBodyRendering()

   }