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(.NET Core C#) Scan for Emails with Attachments and Save Attachments to FilesScan for emails with attachments and save attachments. Note: This example requires Chilkat v11.0.0 or greater.
bool success = false; // This example requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. Chilkat.Imap imap = new Chilkat.Imap(); // Connect to an IMAP server. // Use TLS imap.Ssl = true; imap.Port = 993; success = imap.Connect("imap.example.com"); if (success == false) { Debug.WriteLine(imap.LastErrorText); return; } // Login success = imap.Login("myLogin","myPassword"); if (success == false) { Debug.WriteLine(imap.LastErrorText); return; } // Select an IMAP mailbox success = imap.SelectMailbox("Inbox"); if (success == false) { Debug.WriteLine(imap.LastErrorText); return; } // We can choose to fetch UIDs or sequence numbers. bool fetchUids = true; // Get the message IDs of all the emails in the mailbox Chilkat.MessageSet messageSet = new Chilkat.MessageSet(); success = imap.QueryMbx("ALL",fetchUids,messageSet); if (success == false) { Debug.WriteLine(imap.LastErrorText); return; } // Fetch the email headers into a bundle object: Chilkat.EmailBundle bundle = new Chilkat.EmailBundle(); bool headersOnly = true; success = imap.FetchMsgSet(headersOnly,messageSet,bundle); if (success == false) { Debug.WriteLine(imap.LastErrorText); return; } // Scan for emails with attachments, and save the attachments // to a sub-directory. Chilkat.Email fullEmail = new Chilkat.Email(); Chilkat.Email emailHeader = new Chilkat.Email(); int i = 0; while (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. int 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. string uidStr = emailHeader.GetHeaderField("ckx-imap-uid"); int uid = Convert.ToInt32(uidStr); success = imap.FetchEmail(false,uid,true,fullEmail); if (success == false) { Debug.WriteLine(imap.LastErrorText); return; } success = fullEmail.SaveAllAttachments("attachmentsDir"); int j; for (j = 0; j <= numAttach - 1; j++) { string filename = imap.GetMailAttachFilename(emailHeader,j); Debug.WriteLine(filename); } } i = i + 1; } // Disconnect from the IMAP server. success = imap.Disconnect(); |
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