winform中简单的邮件发送（c++/cli)

简单的邮件发送窗体，托管c++版：

添加空间引用：using namespace System::Net::Mail;
using namespace System::Net::NetworkInformation;
using namespace System::Net;

添加textbox和按钮。

代码：

private: System::Void button1_Click(System::Object^ sender, System::EventArgs^ e) {
String ^sm;
MailMessage ^aMessage=gcnew MailMessage();
if (textBox1->Text=="")
{
MessageBox::Show("填写地址");

}
else if(textBox2->Text=="")
{
MessageBox::Show("xiejiandizhi");

}
else
{

try{
aMessage = gcnew MailMessage(textBox2->Text->Trim(),textBox1->Text->Trim());
sm= this->textBox2->Text;
int s=sm->IndexOf('@');
int l=sm->IndexOf('.');
String ^sep=sm->Substring(s+1,l-s-1);
//组合SMTP服务器地址
String ^site = "smtp." + sep + ".com";
SmtpClient ^client = gcnew SmtpClient(site);
client->UseDefaultCredentials = false;
NetworkCredential ^myCredential=gcnew NetworkCredential(textBox2->Text->Trim(),textBox3->Text);
client->Credentials = myCredential;
client->DeliveryMethod = SmtpDeliveryMethod::Network;

//邮件主题
aMessage->Subject =textBox4->Text;
//邮件内容
aMessage->Body =textBox5->Text;
//发送电子邮件
client->Send(aMessage);
MessageBox::Show("邮件发送成功!");
}
catch(Exception ^ex)
{
MessageBox::Show(ex->Message);
}
}

注释：textbox1为收件人地址，box2为写件人地址，box为写件人地址密码，box4为邮件主题，box5为邮件内容。