Go Requires Chilkat v11.0.0+

Scan for Emails with Attachments and Save Attachments to Files

Scan for emails with attachments and save attachments. Go

    success := false

    //  This example requires the Chilkat API to have been previously unlocked.
    //  See Global Unlock Sample for sample code.

    imap := chilkat.NewImap()

    //  Connect to an IMAP server.
    //  Use TLS
    imap.SetSsl(true)
    imap.SetPort(993)
    success = imap.Connect("imap.example.com")
    if success == false {
        fmt.Println(imap.LastErrorText())
        imap.DisposeImap()
        return
    }

    //  Login
    success = imap.Login("myLogin","myPassword")
    if success == false {
        fmt.Println(imap.LastErrorText())
        imap.DisposeImap()
        return
    }

    //  Select an IMAP mailbox
    success = imap.SelectMailbox("Inbox")
    if success == false {
        fmt.Println(imap.LastErrorText())
        imap.DisposeImap()
        return
    }

    //  We can choose to fetch UIDs or sequence numbers.
    fetchUids := true

    //  Get the message IDs of all the emails in the mailbox
    messageSet := chilkat.NewMessageSet()
    success = imap.QueryMbx("ALL",fetchUids,messageSet)
    if success == false {
        fmt.Println(imap.LastErrorText())
        imap.DisposeImap()
        messageSet.DisposeMessageSet()
        return
    }

    //  Fetch the email headers into a bundle object:
    bundle := chilkat.NewEmailBundle()
    headersOnly := true
    success = imap.FetchMsgSet(headersOnly,messageSet,bundle)
    if success == false {
        fmt.Println(imap.LastErrorText())
        imap.DisposeImap()
        messageSet.DisposeMessageSet()
        bundle.DisposeEmailBundle()
        return
    }

    //  Scan for emails with attachments, and save the attachments
    //  to a sub-directory.
    fullEmail := chilkat.NewEmail()
    emailHeader := chilkat.NewEmail()
    i := 0
    for i < bundle.MessageCount() {
        //  The bundle contains email headers..
        bundle.EmailAt(i,emailHeader)

        //  Does this email have attachments?
        //  Use GetMailNumAttach because the attachments
        //  are not actually in the email object because
        //  we only downloaded headers.
        numAttach := imap.GetMailNumAttach(emailHeader)

        if numAttach > 0 {
            //  Download the entire email and save the
            //  attachments. (Remember, we 
            //  need to download the entire email because
            //  only the headers were previously downloaded.

            //  The ckx-imap-uid header field is added when
            //  headers are downloaded.  This makes it possible
            //  to get the UID from the email object.
            uidStr := emailHeader.GetHeaderField("ckx-imap-uid")
            uid := int(*uidStr)

            success = imap.FetchEmail(false,uid,true,fullEmail)
            if success == false {
                fmt.Println(imap.LastErrorText())
                imap.DisposeImap()
                messageSet.DisposeMessageSet()
                bundle.DisposeEmailBundle()
                fullEmail.DisposeEmail()
                emailHeader.DisposeEmail()
                return
            }

            success = fullEmail.SaveAllAttachments("attachmentsDir")

            var j int
            for j = 0; j <= numAttach - 1; j++ {
                filename := imap.GetMailAttachFilename(emailHeader,j)
                fmt.Println(*filename)
            }

        }

        i = i + 1
    }

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

    imap.DisposeImap()
    messageSet.DisposeMessageSet()
    bundle.DisposeEmailBundle()
    fullEmail.DisposeEmail()
    emailHeader.DisposeEmail()