An example of an email involving msmq,rsa,jmail

jmail| Send mail

1. Mr. Public Key

RSACryptoServiceProvider crypt=new RSACryptoServiceProvider ();
String Publickey=crypt. Toxmlstring (false);//(Public key)
String Privatekey=crypt. Toxmlstring (TRUE);
Crypt. Clear ();
StreamWriter One=new StreamWriter (@ "C:\a.txt", True,utf8encoding.utf8);
One. Write (PublicKey);
StreamWriter Two=new StreamWriter (@ "C:\b.txt", True,utf8encoding.utf8);
Two. Write (Privatekey);
One. Flush ();
Two. Flush ();
One. Close ();
Two. Close ();
Console.WriteLine ("Save the public key and keys successfully!") ");

2. Encrypt the information and then send the message through the queue

String From=textboxfrom.text+dropdownlist2.selectedvalue;
String Sub=textboxsub.text;
String Bodys=textboxbody.text;
String Pwd=textboxpwd.text;

StreamReader sr = new StreamReader (@ "C:\a.txt", Utf8encoding.utf8);
String Readpublickey = Sr. ReadToEnd ();
Sr. Close ();

RSACryptoServiceProvider crypt=new RSACryptoServiceProvider ();
UTF8Encoding enc=new utf8encoding ();
Byte[] Bytes=enc. GetBytes (PWD);
Crypt. Fromxmlstring (Readpublickey);//Read Public key
bytes = Crypt. Encrypt (Bytes,false); For encryption
String encryttext=convert.tobase64string (bytes); Transfer code

Mailerinfo mf=new mailerinfo ();
Mf.body=bodys;
Mf. Body=bodys;
Mf. From=from;
Mf. Fromname=textboxfrom.text;
Mf. Password=encryttext;
Mf. Sub=sub;

Createqueue (". \\myQueue");

SendMessage (MF);

}

  public static void Createqueue (String queuepath)
  {
   try                
   {
    if (! Messagequeue.exists (QueuePath))
    {
      Messagequeue.create (@ ". \private$\myqueue");
    }
    else
    {
      Console.WriteLine (QueuePath + "already exists.");
    }
   }
   catch (messagequeueexception e)
   {
     Console.WriteLine (E.message);
   }
  }

public void SendMessage (mailerinfo MF)
{
Try
{
MessageQueue myqueue = new MessageQueue (". \\private$\\myQueue");

System.Messaging.Message mymessage = new System.Messaging.Message (MF);
Myqueue.send (Mymessage);
}
catch (ArgumentException E)
{
Console.WriteLine (E.message);
}

Return
}

3. Run the program on the server side independently, read the information in the queue

public void ReceiveMessage ()
{

MessageQueue myqueue = new MessageQueue (". \\private$\\myQueue");
Myqueue.formatter = new XMLMessageFormatter (new Type[]{typeof (Messagerec.mailerinfo)});
Try
{
System.Messaging.Message mymessage = myqueue.receive ();
Mailerinfo MF = (mailerinfo) mymessage.body;
Decoding

StreamReader sr = new StreamReader (@ "C:\b.txt", Utf8encoding.utf8);
String Readprivatekey = Sr. ReadToEnd ();
Sr. Close ();

    rsacryptoserviceprovider crypt=new RSACryptoServiceProvider ();
    utf8encoding enc=new utf8encoding ();
    byte[] bytes = convert.frombase64string (Mf.password);
    crypt. Fromxmlstring (Readprivatekey);
    byte[] Decryptbyte = crypt. Decrypt (Bytes,false);
    password=enc. GetString (Decryptbyte);
    from=mf.from;
    FROMNAME=MF. FromName;
    sub=mf.sub;
    body=mf.body;
    to= "dankes@163.com";

}
catch (Messagequeueexception)
{
}
catch (InvalidOperationException e)
{
Console.WriteLine (E.message);
}

Send mail

JMail. Message Jmail=new JMail. Message ();
Jmail.silent=false;
Jmail.logging=true;
Jmail.charset= "GB2312";
Jmail.contenttype= "text/html";
Jmail.addrecipient (To, "", "");
Jmail.from=from;
Jmail.mailserverusername=fromname;
Jmail.mailserverpassword=password;
Jmail.subject=sub;
Jmail.body=body;
String smtp= "smtp.163.com";
if (from. EndsWith ("tom.com"))
{
smtp= "smtp.tom.com";
}
else if (from. EndsWith ("21cn.com"))
{
smtp= "smtp.21cn.com";
}
else if (from. EndsWith ("Sina.com"))
{
smtp= "smtp.sina.com";
}
else if (from. EndsWith ("263.com"))
{
smtp= "smtp.263.com";
}
Start sending mail
int i=0;
Try
{
Jmail.send (Smtp,false);
}
catch (Exception ee)
{
I=1;
}
Jmail.close ();

if (i==0)
Console.WriteLine ("Mail sent successfully" + "Sender:" +from+ "Receiver:" +to+ "subject is:" +sub);
if (i==1)
Console.WriteLine ("Landing failure, or network failure");

}