Notes

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Net.Mail;

namespace CSharpEpostaGondermeProgrami
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}

private void Form1_Load(object sender, EventArgs e)
{

}

public void Gonder(string konu, string kime, string icerik)
{
try
{
MailMessage ePosta = new MailMessage();
ePosta.From = new MailAddress(textBoxGonderenEposta.Text);
//
ePosta.To.Add(kime);
//
//
ePosta.Subject = konu;
//

ePosta.IsBodyHtml = true;
ePosta.Body = icerik;
//
SmtpClient smtp = new SmtpClient();
//
smtp.Credentials = new System.Net.NetworkCredential(textBoxGonderenEposta.Text, textBoxGonderenParola.Text);
smtp.Port = Convert.ToInt32(textBoxPort.Text);
smtp.Host = textBoxHost.Text;
smtp.EnableSsl = true;
object userState = ePosta;
try
{
smtp.SendAsync(ePosta, (object)ePosta);
}
catch (SmtpException ex)
{
System.Windows.Forms.MessageBox.Show(ex.Message, "Mail Gönderme Hatasi");
}
MessageBox.Show("E-postanız " + textBoxAliciEposta.Text + " mail adresine başarıyla gönderilmiştir.", "Mesaj", MessageBoxButtons.OK, MessageBoxIcon.Information);

}
catch (Exception hata)
{
MessageBox.Show("Hata oluştu. " + hata.Message);
}
}

private void buttonGonder_Click(object sender, EventArgs e)
{
Gonder(textBoxKonu.Text,textBoxAliciEposta.Text,richTextBox1.Text);
this.Close();
}

/// ///////////////////////////////////////////////////// Menü İşlemleri ///////////////////////
private void simpleButtonKalin_Click(object sender, EventArgs e)
{
FontStyle old_style = richTextBox1.SelectionFont.Style;
richTextBox1.SelectionFont = new Font(this.richTextBox1.Font, ((FontStyle)(old_style | FontStyle.Bold)));
}

private void simpleButtonItalik_Click(object sender, EventArgs e)
{
FontStyle old_style = richTextBox1.SelectionFont.Style;
richTextBox1.SelectionFont = new Font(this.richTextBox1.Font, ((FontStyle)(old_style | FontStyle.Italic)));
}

private void simpleButtonAltiCizili_Click(object sender, EventArgs e)
{
FontStyle old_style = richTextBox1.SelectionFont.Style;
richTextBox1.SelectionFont = new Font(this.richTextBox1.Font, ((FontStyle)(old_style | FontStyle.Underline)));

}
int alignment_count=0;
private void simpleButtonSolaDayali_Click(object sender, EventArgs e)
{
richTextBox1.SelectionAlignment = HorizontalAlignment.Left;
if (alignment_count > 1)
{
richTextBox1.SelectionAlignment = HorizontalAlignment.Left;
alignment_count = 0;
}
alignment_count++;
}

private void simpleButtonMerkez_Click(object sender, EventArgs e)
{

}

private void simpleButtonSagaDayali_Click(object sender, EventArgs e)
{
richTextBox1.SelectionAlignment = HorizontalAlignment.Right;
if (alignment_count > 1)
{
richTextBox1.SelectionAlignment = HorizontalAlignment.Right;
alignment_count = 0;
}
alignment_count++;
}

private void button7_Click(object sender, EventArgs e)
{
System.Diagnostics.Process.Start("www.kodbankasi.gen.tr");
}

}
}