Below is code to read.
public string IMAP_COMMAND_PREFIX = "IMAP00";
public int IMAP_COMMAND_COUNT = 0;
public string IMPAP_SUCCESS_RESPONSE = " OK";
public string IMAP_NO_RESPONSE = " NO";
public string IMAP_BAD_RESPONSE = " BAD";
public string IMAP_COMMAND_EOL = "\r\n";
public string IMAP_SEARCH_RESPONSE = "* SEARCH ";
public string IMAP_UNSEEN_FLAG = "unseen";
public string IMAP_CAPABILITY_COMMAND = "CAPABILITY";
public string IMAP_LOGIN_COMMAND = "LOGIN";
public string IMAP_LOGOUT_COMMAND = "LOGOUT";
public string IMAP_SELECT_COMMAND = "SELECT INBOX";
public string IMAP_SEARCH_COMMAND = "SEARCH";
public string IMAP_UIDFETCH_COMMAND = "UID FETCH";
public string IMAP_BODYSTRUCTURE_COMMAND = "BODYSTRUCTURE";
protected void Page_Load(object sender, EventArgs e)
{
try {
TcpClient tcpclient = new TcpClient(); // create an instance of TcpClient
string strCommand = string.Empty;
tcpclient.Connect("host name", 143); // HOST NAME IAMP SERVER and port number 143 for POP
Stream sslstream = tcpclient.GetStream();
System.IO.StreamWriter sw = new StreamWriter(sslstream); // Asssigned the writer to stream
System.IO.StreamReader reader = new StreamReader(sslstream); // Assigned reader to stream
strCommand = IMAP_COMMAND_PREFIX + IMAP_COMMAND_COUNT.ToString() + " " + IMAP_CAPABILITY_COMMAND + IMAP_COMMAND_EOL;
ReadResonse(reader, strCommand, sw);
strCommand = IMAP_COMMAND_PREFIX + IMAP_COMMAND_COUNT.ToString() + " " + IMAP_LOGIN_COMMAND + " " + "EmailAddressID" + " " + "Email Password";
ReadResonse(reader, strCommand, sw);
strCommand = IMAP_COMMAND_PREFIX + IMAP_COMMAND_COUNT.ToString() + " " + IMAP_SELECT_COMMAND + IMAP_COMMAND_EOL;
ReadResonse(reader, strCommand, sw);
strCommand = IMAP_COMMAND_PREFIX + IMAP_COMMAND_COUNT.ToString() + " " + IMAP_SEARCH_COMMAND + " " + IMAP_UNSEEN_FLAG + IMAP_COMMAND_EOL;
ReadResonse(reader, strCommand, sw);
strCommand = IMAP_COMMAND_PREFIX + IMAP_COMMAND_COUNT.ToString() + " " + IMAP_SEARCH_COMMAND + " " + IMAP_LOGOUT_COMMAND + IMAP_COMMAND_EOL;
ReadResonse(reader, strCommand, sw);
}
catch (Exception ex)
{
}
}
public void ReadResonse(StreamReader reader, string strCommand, StreamWriter swriter)
{
try
{
swriter.WriteLine(strCommand);
swriter.Flush();
bool IsLastSuccess = false;
string strResponse = string.Empty;
while ((strResponse = reader.ReadLine()) != null)
{
if (strResponse.StartsWith(IMAP_COMMAND_PREFIX + IMAP_COMMAND_COUNT.ToString() + IMPAP_SUCCESS_RESPONSE)) // find the success character in line
{
break;
}
else if (strResponse.StartsWith(IMAP_COMMAND_PREFIX + IMAP_COMMAND_COUNT.ToString() + IMAP_NO_RESPONSE)) // find the failure character in line
{
break;
}
else if (strResponse.StartsWith(IMAP_COMMAND_PREFIX + IMAP_COMMAND_COUNT.ToString() + IMAP_BAD_RESPONSE)) // find the failure character in line
{
break;
}
else if (strResponse.StartsWith(IMAP_COMMAND_PREFIX + IMAP_COMMAND_COUNT.ToString() + IMAP_BAD_RESPONSE)) // find the failure character in line
{
break;
}
else if (strResponse.StartsWith(IMAP_SEARCH_RESPONSE)) // find the unread mail
{
string strTempUnread = strResponse.Substring(strResponse.IndexOf(IMAP_SEARCH_RESPONSE) + IMAP_SEARCH_RESPONSE.Length);
string[] strArray = strTempUnread.Split(" ".ToCharArray());
string strSearch = string.Empty;
while ((strSearch = reader.ReadLine()) != null)
{
if (strSearch.StartsWith(IMAP_COMMAND_PREFIX + IMAP_COMMAND_COUNT.ToString() + IMPAP_SUCCESS_RESPONSE))
{
IsLastSuccess = true;
break;
}
}
for (int i = 0; i < strArray.Length; i++)
{
//read header of email
swriter.WriteLine(IMAP_COMMAND_PREFIX + i.ToString() + " " + "FETCH " + strArray[i].ToString() + " BODY[HEADER.fields (from)]\r\n"); // this will retrive your first email
swriter.Flush();
string strTemp = string.Empty;
while ((strTemp = reader.ReadLine()) != null)
{
if (strTemp.StartsWith(IMAP_COMMAND_PREFIX + i.ToString() + IMPAP_SUCCESS_RESPONSE))
{
break;
}
else if (strTemp.StartsWith(IMAP_COMMAND_PREFIX + i.ToString() + IMAP_NO_RESPONSE)) // find the failure character in line
{
break;
}
else if (strTemp.StartsWith(IMAP_COMMAND_PREFIX + i.ToString() + IMAP_BAD_RESPONSE)) // find the failure character in line
{
break;
}
else if (strTemp.StartsWith(IMAP_COMMAND_PREFIX + i.ToString() + IMAP_BAD_RESPONSE)) // find the failure character in line
{
break;
}
}
// read body of email
swriter.WriteLine(IMAP_COMMAND_PREFIX + i.ToString() + " " + " FETCH " + strArray[i].ToString() + " BODY[TEXT]\r\n"); // this will retrive your first email
swriter.Flush();
while ((strTemp = reader.ReadLine()) != null)
{
if (strTemp.StartsWith(IMAP_COMMAND_PREFIX + i.ToString() + IMPAP_SUCCESS_RESPONSE))
{
break;
}
else if (strTemp.StartsWith(IMAP_COMMAND_PREFIX + i.ToString() + IMAP_NO_RESPONSE)) // find the failure character in line
{
break;
}
else if (strTemp.StartsWith(IMAP_COMMAND_PREFIX + i.ToString() + IMAP_BAD_RESPONSE)) // find the failure character in line
{
break;
}
else if (strTemp.StartsWith(IMAP_COMMAND_PREFIX + i.ToString() + IMAP_BAD_RESPONSE)) // find the failure character in line
{
break;
}
}
}
}
if (IsLastSuccess == true)
break;
}
IMAP_COMMAND_COUNT++;
}
catch (Exception ex)
{
log4net.ILog logger = log4net.LogManager.GetLogger("File");
logger.Error("Lead Convertor + ReadResonse :" + ex.Message);
}
}
}
Beloow link for IMAP Commands
http://bobpeers.com/technical/telnet_imap.php
Happy coding :-)
