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(C#) Determine the Number of Unseen Email MessagesDemonstrates how to determine how many unseen messages exist in an email account on an IMAP server. 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("***","***"); if (success == false) { Debug.WriteLine(imap.LastErrorText); return; } // Select an IMAP mailbox success = imap.SelectMailbox("Inbox"); if (success == false) { Debug.WriteLine(imap.LastErrorText); return; } // After selecting the mailbox. the total number of emails // is immediately available: int totalNum = imap.NumMessages; Debug.WriteLine("Num messages = " + Convert.ToString(totalNum)); // To determine the number of unseen messages, a call // to Search is required, which returns the set of UIDs // of all unseen messages. // We can choose to fetch UIDs or sequence numbers. bool fetchUids = true; Chilkat.MessageSet messageSet = new Chilkat.MessageSet(); success = imap.QueryMbx("UNSEEN",fetchUids,messageSet); if (success == false) { Debug.WriteLine(imap.LastErrorText); return; } uint numUnseen = messageSet.Count; Debug.WriteLine(Convert.ToString(numUnseen)); Debug.WriteLine("UIDs ----"); // Display the UIDs int i = 0; while (i < messageSet.Count) { Debug.WriteLine(Convert.ToString(messageSet.GetId(i))); i = i + 1; } // Disconnect from the IMAP server. success = imap.Disconnect(); |
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