string send = txtSend.Text.Trim();//发件人邮箱地址
string to = txtTo.Text.Trim();//收件人邮箱地址
if (regex(send) && regex(to))//判断发件人邮箱地址&&收件人邮箱地址不为空
{
if (send != "" && to != "" && txtpwd.Text != "")
{
DialogResult result = MessageBox.Show("确认发送", "系统提示", MessageBoxButtons.OKCancel, MessageBoxIcon.Information);
if (result == DialogResult.OK)
{
try
{
MailMessage mailMessage = new MailMessage();
mailMessage.From = new MailAddress(send);//发件人邮箱地址
mailMessage.To.Add(new MailAddress(to));//收件人邮箱地址
mailMessage.Subject =Convert.ToBase64String(Encoding.UTF8.GetBytes(txtSubject.Text));//对邮件主题进行编码
mailMessage.Body = Convert.ToBase64String(Encoding.UTF8.GetBytes(rtboxContent.Text));//对邮件内容进行编码
SmtpClient client = new SmtpClient();
client.Host = "smtp." + send.Substring(send.IndexOf("@") + 1);//邮箱的服务器的地址
client.EnableSsl = true;//是否加密连接
client.UseDefaultCredentials = false;//不和请求一起发送
client.Credentials = new NetworkCredential(send, txtpwd.Text);//验证发件人的身份
client.Send(mailMessage);//发送邮件
MessageBox.Show("发送成功", "系统提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
catch
{
MessageBox.Show("发送失败", "系统提示", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
}
else
{
MessageBox.Show("发件人邮箱、发件人密码、收件人邮箱不能为空!", "系统提示", MessageBoxButtons.OK, MessageBoxIcon.Hand);
}
}
else
{
MessageBox.Show("请输入正确的电子邮件", "系统提示", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
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