C# - Retrieve Email from Gmail Account, fetch email from gmail , how to access gmail inbox, get mail from inbox of gmail in c#

Gmail POP3 server address is "pop.gmail.com". It requires SSL connection on 995 port, and you should use your Gmail email address as the user name for user authentication. For example: your email is "gmailid@gmail.com", and then the user name should be "gmailid@gmail.com".
Gmail IMAP4 server address is "imap.gmail.com". It requires SSL connection on 993 port, and you should use your Gmail email address as the user name for user authentication. For example: your email is "gmailid@gmail.com", and then the user name should be "gmailid@gmail.com".
To retrieve email from Gmail account, you need to enable POP3 or IMAP4 access in your gmail account settings.
Because Gmail POP3 server doesn't work like normal POP3 server, it hides old emails automatically even the email was not deleted, so we suggest that you use IMAP4 protocol.
The following example codes demonstrate how to retrieve email from Gmail IMAP4 server.

InstallationBefore you can use the following sample codes, you should download the EAGetMail Installer and install it on your machine at first.
Add Reference of EAGetMail to Visual Stuido C#.NET ProjectTo use EAGetMail POP3 & IMAP Component in your project, the first step is "Add reference of EAGetMail to your project". Please create/open your project with Visual Studio.NET, then choose menu->"Project"->"Add Reference"->".NET"->"Browse...", and choose the EAGetMail{version}.dll from your disk, click "Open"->"OK", the reference of EAGetMail will be added to your project, and you can start to use EAGetMail to retrieve email and parse email in your project.

Because EAGetMail has separate builds for .Net Framework, please refer to the following table and choose the correct dll.

Separate builds of run-time assembly for .Net Framework 1.1, 2.0, 3.5, 4.0 and .Net Compact Framework 2.0, 3.5.

File	.NET Framework Version
EAGetMail.dll	Built with .NET Framework 1.1 It requires .NET Framework 1.1, 2.0, 3.5 or later version.
EAGetMail20.dll	Built with .NET Framework 2.0 It requires .NET Framework 2.0, 3.5 or later version.
EAGetMail35.dll	Built with .NET Framework 3.5 It requires .NET Framework 3.5 or later version.
EAGetMail40.dll	Built with .NET Framework 4.0 It requires .NET Framework 4.0 or later version.
EAGetMailCF20.dll	Built with .NET Compact Framework 2.0 It requires .NET Compact Framework 2.0, 3.5 or later version.
EAGetMailCF35.dll	Built with .NET Compact Framework 3.5 It requires .NET Compact Framework 3.5 or later version.

C# | VB6 | Visual Basic.NET | Managed C++ | Visual C++ | Delphi

// The following example codes demonstrate retrieving email from Gmail 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

using System;
using System.Collections.Generic;
using System.Text;
using System.IO;

// Add EAGetMail namespace
using EAGetMail;

namespace receiveemail
{
    class Program
    {
        static void Main(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);
            }

            // Gmail IMAP4 server is "imap.gmail.com"
            MailServer oServer = new MailServer("imap.gmail.com",
                        "gmailid@gmail.com", "yourpassword", ServerProtocol.Imap4 );
            MailClient oClient = new MailClient("TryIt");

            // Set SSL connection,
            oServer.SSLConnection = true;

            // Set 993 IMAP4 port
            oServer.Port = 993;

            try
            {
                oClient.Connect(oServer);
                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 GMail 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 = new
                        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 in GMail account.
                    oClient.Delete(info);
                }

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

        }
    }
}