public event TlsStartedEventHandler TlsStarted

Public Event TlsStarted As TlsStartedEventHandler

using System;
using MailBee;
using MailBee.SmtpMail;
using MailBee.Security;

class Sample
{
    // TlsStarted event handler.
    private static void OnTlsStarted(object sender, TlsStartedEventArgs e)
    {
        // This will happen during Hello method execution.
        Console.WriteLine("TLS/SSL session started.");
    }

    // The actual code.
    static void Main(string[] args)
    {
        Smtp mailer = new Smtp();

        // Subscribe to TlsStarted event.
        mailer.TlsStarted += new TlsStartedEventHandler(OnTlsStarted);

        // Notify MailBee it should start TLS/SSL session when appropriate.
        // The connection is made to the regular port so that STLS command
        // will be used to start TLS/SSL session.
        SmtpServer server = new SmtpServer("smtp.company.com");
        server.SslMode = SslStartupMode.UseStartTls;
        mailer.SmtpServers.Add(server);

        mailer.Connect();

        Console.WriteLine("Connected to the server. Will send greeting now...");

        // TLS/SSL negotiation will take place here. Thus, any subseqeunt commands
        // such as sending user credentials or mail message submission will take
        // place under secure TLS/SSL layer.
        // Note: EHLO command will be sent twice: first, before TLS/SSL negotiation;
        // second, after. This is because capability list presented by EHLO response
        // can change after TLS negotiation.
        mailer.Hello();

        Console.WriteLine("Hello completed successfully.");

        // Can send mail, perform login or whatever here.

        mailer.Disconnect();
    }
}

Imports System
Imports MailBee
Imports MailBee.SmtpMail
Imports MailBee.Security

Public Class Sample
    ' TlsStarted event handler.
    Private Shared Sub OnTlsStarted(ByVal sender As Object, ByVal e As TlsStartedEventArgs)
        ' This will happen during Hello method execution.
        Console.WriteLine("TLS/SSL session started.")
    End Sub

    ' The actual code.
    Shared Sub Main(ByVal args As String())
        Dim mailer As New Smtp

        ' Subscribe to TlsStarted event.
        AddHandler mailer.TlsStarted, AddressOf OnTlsStarted

        ' Notify MailBee it should start TLS/SSL session when appropriate.
        ' The connection is made to the regular port so that STLS command
        ' will be used to start TLS/SSL session.
        Dim server As SmtpServer = New SmtpServer("smtp.company.com")
        server.SslMode = SslStartupMode.UseStartTls
        mailer.SmtpServers.Add(server)

        mailer.Connect()

        Console.WriteLine("Connected to the server. Will send greeting now...")

        ' TLS/SSL negotiation will take place here. Thus, any subseqeunt commands
        ' such as sending user credentials or mail message submission will take
        ' place under secure TLS/SSL layer.
        ' Note: EHLO command will be sent twice: first, before TLS/SSL negotiation;
        ' second, after. This is because capability list presented by EHLO response
        ' can change after TLS negotiation.
        mailer.Hello()

        Console.WriteLine("Hello completed successfully.")

        ' Can send mail, perform login or whatever here.

        mailer.Disconnect()
    End Sub
End Class