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(C#) Read IMAP Email HeadersCall FetchHeaders to download only the email headers.
// 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; bool success = imap.Connect("imap.someMailServer.com"); if (success != true) { Debug.WriteLine(imap.LastErrorText); return; } // Login success = imap.Login("****","****"); if (success != true) { Debug.WriteLine(imap.LastErrorText); return; } // Select an IMAP mailbox success = imap.SelectMailbox("Inbox"); if (success != true) { Debug.WriteLine(imap.LastErrorText); return; } Chilkat.MessageSet messageSet = null; // We can choose to fetch UIDs or sequence numbers. bool fetchUids = true; // Get the message IDs of all the emails in the mailbox messageSet = imap.Search("ALL",fetchUids); if (imap.LastMethodSuccess != true) { Debug.WriteLine(imap.LastErrorText); return; } // When downloading headers, each email object contains // (obviously) the headers, but the body will be missing. // Also, attachments will not be included. However, it is // possible to get information about the attachments // as well as the complete size of the email. Chilkat.EmailBundle bundle = null; bundle = imap.FetchHeaders(messageSet); if (imap.LastMethodSuccess != true) { Debug.WriteLine(imap.LastErrorText); return; } // Loop over the email objects and display information // about each: int i; for (i = 0; i <= bundle.MessageCount - 1; i++) { Chilkat.Email email = null; email = bundle.GetEmail(i); // Display the From and Subject Debug.WriteLine(email.From); Debug.WriteLine(email.Subject); // Display the recipients: int j; string name; string addr; for (j = 0; j <= email.NumTo - 1; j++) { name = email.GetToName(j); addr = email.GetToAddr(j); Debug.WriteLine(name + ", " + addr); } for (j = 0; j <= email.NumCC - 1; j++) { name = email.GetCcName(j); addr = email.GetCcAddr(j); Debug.WriteLine(name + ", " + addr); } // Show the total size of the email, including body and attachments: Debug.WriteLine(Convert.ToString(email.Size)); // When a full email is downloaded, we would use the // email.NumAttachments property in conjunction with the // email.GetMailAttach* methods. // However, when an email object contains only the header, // we need to access the attachment info differently: int numAttach = imap.GetMailNumAttach(email); for (j = 0; j <= numAttach - 1; j++) { Debug.WriteLine(imap.GetMailAttachFilename(email,j)); int attachSize = imap.GetMailAttachSize(email,j); Debug.WriteLine(" size = " + Convert.ToString(attachSize) + " bytes"); } Debug.WriteLine("--"); } // Disconnect from the IMAP server. success = imap.Disconnect(); |
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