Fetch an Email Body in Mailcore2 Osx with Swift

How to get message body and last email in mailcore2?

   var session = MCOIMAPSession() // Make Global
    session.hostname = "imap.gmail.com"
    session.port = 993
    session.username = "example@gmail.com"
    session.password = "**********"
    session.connectionType = MCOConnectionType.TLS
    let requestKind: MCOIMAPMessagesRequestKind = [.headers, .flags]

    var uidSet = MCOIndexSet(range: MCORangeMake(1, UINT64_MAX))

    var fetchOp: MCOIMAPFetchMessagesOperation? = session.fetchMessagesByUIDOperation(withFolder: "INBOX", requestKind: MCOIMAPMessagesRequestKind.headers, uids: uidSet)

    fetchOp?.start{( err, msgs, vanished) -> Void in

        //print(msgs)
        let msgs = msgs as? [MCOIMAPMessage]

        for msgs in msgs!{

            // THE uid for this email. The uid is unique for one email
            let uiid = msgs.uid

            useImapFetchContent(uidToFetch: uiid)

        }
    }

func useImapFetchContent(uidToFetch uid: UInt32)
{

    let operation = session.fetchParsedMessageOperation(withFolder: "INBOX", uid: UInt32(uid))

    operation?.start{( error, messageParser)-> Void in
        if error == nil {
            let returnValue = messageParser!.plainTextBodyRenderingAndStripWhitespace(false)
        }
        let subject = messageParser?.header.subject
        print(subject)
        let from = messageParser?.header.from
        print(from)
        let to = messageParser?.header.to
        print(to)
        let msgPlainBody = messageParser?.plainTextBodyRendering()
        print("BODY")
        print(msgPlainBody)
    }   
}

How to store extra header value with MailCore2?

editWith the help of dinhviethoa in the MailCore2 forum on GitHub (https://github.com/MailCore/mailcore2/issues/680), the question could be answered:

• It is not possible to edit the header of an existing email.
• However, it is possible to remove the existing message from the server and append a new message (with extra headers).

Adding MailCore2 via Carthage with Swift Support to Xcode

Need for Carthage to checkout the latest commit. Changing the Cartfile to:

github "MailCore/mailcore2" "master"

Did magic

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