Connect to POP3 in C#

connect-pop3-http.cs

// Create an instance of the Pop3Client class
Pop3Client client = new Pop3Client("pop.domain.com", "username", "password");
           
// Create and configure HttpProxy
HttpProxy proxy = new HttpProxy("18.222.124.59", 8080);
client.Proxy = proxy;

// Get mailbox information
Pop3MailboxInfo mailboxInfo = client.GetMailboxInfo();

connect-pop3-socks.cs

// Create an instance of the Pop3Client class
Pop3Client client = new Pop3Client("pop.domain.com", "username", "password");
            
// Set proxy address
string proxyAddress = "192.168.203.142";

// Specify port number
int proxyPort = 1080;

// Create an instance of SocksProxy and configure it
SocksProxy proxy = new SocksProxy(proxyAddress, proxyPort, SocksVersion.SocksV5);
client.Proxy = proxy;

// Get mailbox information
Pop3MailboxInfo mailboxInfo = client.GetMailboxInfo();

connect-pop3-ssl.cs

// Create an instance of the Pop3Client class
Pop3Client client = new Pop3Client();

// Specify host, username, password, Port and SecurityOptions for your client
client.Host = "pop.gmail.com";
client.Username = "your.username@gmail.com";
client.Password = "your.password";
client.Port = 995;

// For SSL-enabled POP3 server
client.SecurityOptions = SecurityOptions.SSLAuto;

// Print message after connection
Console.WriteLine(Environment.NewLine + "Connected to POP3 server.");

connect-pop3.cs

// Create an instance of the Pop3Client class
Pop3Client client = new Pop3Client();

// Specify host, username, password, Port and SecurityOptions for your client
client.Host = "pop.gmail.com";
client.Username = "your.username@gmail.com";
client.Password = "your.password";
client.Port = 995;
client.SecurityOptions = SecurityOptions.Auto;

// Print message after connection
Console.WriteLine(Environment.NewLine + "Connected to POP3 server.");