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ivan  
#1 Posted : Monday, April 11, 2011 4:48:04 AM(UTC)
ivan

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C++/CLI Example

SSL connection encrypts data between the email component and POP3 server or IMAP4 server to protect user, password and email content in TCP/IP level. Now this technology is commonly used and many email servers are deployed with SSL such as Gmail, Yahoo and Hotmail. There are two ways to deploy SSL on email server: 1. Using STARTTLS or STLS command to switch SSL channel on normal port (POP3: 110 or IMAP4: 143); 2. Deploying SSL on another port (POP3: 995 or IMAP4: 993 you may query it from your server administrator) directly

The following example codes demonstrate how to retrieve email over SSL connection from IMAP4 server. This sample downloads emails from IMAP4 server and deletes the email after the email is retrieved.

// The following example codes demonstrate retrieving email over SSL connection from IMAP4 server
// To get full sample projects, please download and install EAGetMail on your machine.
// To run it correctly, please change email server, user, password, folder, file name value to yours

Code:

#include "stdafx.h" 

using namespace System; 
using namespace System::IO; 

// Add EAGetMail namespace
using namespace EAGetMail; 

int main(array<System::String ^> ^args) 
{ 
    // Create a folder named "inbox" under current directory
    // to save the email retrieved.
    String ^curpath = Directory::GetCurrentDirectory(); 
    String ^mailbox = String::Format("{0}\\inbox", curpath); 

    // If the folder is not existed, create it.
    if (!Directory::Exists(mailbox)) 
    { 
        Directory::CreateDirectory(mailbox); 
    } 

    MailServer ^oServer = gcnew MailServer("imap.emailarchitect.net", 
        "test@emailarchitect.net", "testpassword", ServerProtocol::Imap4 ); 
    MailClient ^oClient = gcnew MailClient("TryIt"); 

    // Enable SSL Connection
    oServer->SSLConnection = true; 

    // Set 993 SSL IMAP4 port
    oServer->Port = 993; 

    try 
    { 
        oClient->Connect(oServer); 
        array<MailInfo^> ^infos = oClient->GetMailInfos(); 
        for (int i = 0; i < infos->Length; i++) 
        { 
            MailInfo ^info = infos[i]; 
            Console::WriteLine("Index: {0}; Size: {1}; UIDL: {2}", 
                info->Index, info->Size, info->UIDL); 

            // Receive email from IMAP4 server
            Mail ^oMail = oClient->GetMail(info); 

            Console::WriteLine("From: {0}", oMail->From->ToString()); 
            Console::WriteLine("Subject: {0}\r\n", oMail->Subject); 

            // Generate an email file name based on date time.
            System::DateTime d = System::DateTime::Now; 
            System::Globalization::CultureInfo ^cur = gcnew 
                System::Globalization::CultureInfo("en-US"); 
            String ^sdate = d.ToString("yyyyMMddHHmmss", cur); 
            String ^fileName = String::Format("{0}\\{1}{2}{3}.eml", 
                mailbox, sdate, d.Millisecond.ToString("d3"), i); 

            // Save email to local disk
            oMail->SaveAs(fileName, true); 

            // Mark email as deleted from IMAP4 server.
            oClient->Delete(info); 
        } 

        // Quit and pure emails marked as deleted from IMAP4 server.
        oClient->Quit(); 
    } 
    catch (Exception ^ep) 
    { 
        Console::WriteLine(ep->Message); 
    } 

    return 0; 
} 

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