CODEWITHSUNDEEP
iosswiftemailmailcore2mailcore
aqsa arshad
aqsa arshad

Reputation: 831

Unable to retrieve extra headers - Mailcore

For some emails i want to send extra data with headers. Like I want to know that an email is encrypted or not. For this purpose i am setting extra header like below.

Setting extra header

let mailBuilder: MCOMessageBuilder! =  MCOMessageBuilder()
mailBuilder.header.subject = "Subject"
mailBuilder.header.setExtraHeaderValue("yes", forName: "Encrypted")
// set rest of data.  From,TO,CC,Body etc and send email.. // Email sending is working properly.

Retrieving extra header

func fetchRequestKind () -> MCOIMAPMessagesRequestKind {
        let kind = MCOIMAPMessagesRequestKind()
        let headers = kind.union(MCOIMAPMessagesRequestKind.headers)
        let structure = headers.union(MCOIMAPMessagesRequestKind.structure)
        let request = structure.union(MCOIMAPMessagesRequestKind.flags)
        let requestHeader = request.union(MCOIMAPMessagesRequestKind.extraHeaders)
        return requestHeader
    }

 let request = self.fetchRequestKind()

                    let messagesNumbers = MCOIndexSet.init() // range get set here
                    let fetch : MCOIMAPFetchMessagesOperation = self.imapSession.fetchMessagesByNumberOperation(withFolder: "Inbox", requestKind:request, numbers: messagesNumbers)
                    fetch.start({ (error, fetchedMessages, vanishedMessages) in
                        if(error != nil)
                        {
                            failure(error.debugDescription)
                        } else {
                            if let mails = fetchedMessages as? [MCOIMAPMessage] {
                               print("\(mails[0].header.subject) &&& \(mails[0].header.allExtraHeadersNames())")
                        }
                    })

But i am not getting extra headers this way.. What i am doing wrong here.? Any help would be appreciated.

Upvotes: 0

Views: 173

Answers (1)

Matt Richards
Matt Richards

Reputation: 36

You have to specify the extra header you want in the fetch operation before you start it. In your case:

fetch.extraHeaders = ["Encrypted"]

Then you can retrieve the value with:

mails[0].header.extraHeaderValue(forName: "Encrypted")

Reference: https://github.com/MailCore/mailcore2/issues/1288

Upvotes: 1

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