Scan for Emails with Attachments and Save Attachments to Files

Scan for emails with attachments and save attachments.

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Chilkat.Imap imap = new Chilkat.Imap();

bool success;

// Anything unlocks the component and begins a fully-functional 30-day trial.
success = imap.UnlockComponent("Anything for 30-day trial");
if (success != true) {
    MessageBox.Show(imap.LastErrorText);
    return;
}

// Connect to an IMAP server.
success = imap.Connect("mail.chilkatsoft.com");
if (success != true) {
    MessageBox.Show(imap.LastErrorText);
    return;
}

// Login
success = imap.Login("admin@chilkatsoft.com","*myPassword5*");
if (success != true) {
    MessageBox.Show(imap.LastErrorText);
    return;
}

// Select an IMAP mailbox
success = imap.SelectMailbox("Inbox");
if (success != true) {
    MessageBox.Show(imap.LastErrorText);
    return;
}

Chilkat.MessageSet messageSet;
// We can choose to fetch UIDs or sequence numbers.
bool fetchUids;
fetchUids = true;

// Get the message IDs of all the emails in the mailbox
messageSet = imap.Search("ALL",fetchUids);
if (messageSet == null ) {
    MessageBox.Show(imap.LastErrorText);
    return;
}

// Fetch the email headers into a bundle object:
Chilkat.EmailBundle bundle;
bundle = imap.FetchHeaders(messageSet);
if (bundle == null ) {

    MessageBox.Show(imap.LastErrorText);
    return;
}

// Scan for emails with attachments, and save the attachments
// to a sub-directory.
int i;
for (i = 0; i <= bundle.MessageCount - 1; i++) {
    Chilkat.Email email;
    email = bundle.GetEmail(i);

    // Does this email have attachments?
    // Use GetMailNumAttach because the attachments
    // are not actually in the email object because
    // we only downloaded headers.
    // (Had we downloaded the full emails by
    // calling mailman.FetchBundle, we could look
    // at the email object's NumAttachments property.)
    int numAttach;
    numAttach = imap.GetMailNumAttach(email);

    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.
        // If the entire emails were downloaded by
        // calling FetchBundle instead of FetchHeaders,
        // this would not be necessary.

        // The ckx-imap-uid header field is added when
        // headers are downloaded.  This makes it possible
        // to get the UID from the email object.
        string uidStr;
        uidStr = email.GetHeaderField("ckx-imap-uid");
        int uid;
        uid = Convert.ToInt32(uidStr);

        Chilkat.Email fullEmail;
        fullEmail = imap.FetchSingle(uid,true);
        if (!(fullEmail == null )) {
            fullEmail.SaveAllAttachments("attachmentsDir");

        }

        int j;
        for (j = 0; j <= numAttach - 1; j++) {
            string filename;
            filename = imap.GetMailAttachFilename(email,j);
            textBox1.Text += filename + "\r\n";
            textBox1.Refresh();
        }

    }

}

// Disconnect from the IMAP server.
imap.Disconnect();