news:1166738166.929112.105320@48g2000cwx.googlegroups.com...
> I've had nothing but trouble from the System.Net.Mail objects, but I
> finally need to make them work, and I can't for the life of me see what
> I'm doing wrong.
>
> I pared back my mail transaction to the bare minimum:
>
> System.Net.Mail.SmtpClient smtp = new System.Net.Mail.SmtpClient("<my
> mail server IP>", 25);
> smtp.Send("<one of my email addresses>", "<another of my email
> addresses>", "Hello", "World");
>
> And on the smtp.Send() command I get back a SmtpException {"Failure
> sending mail."}, {An invalid character was found in the mail header.}.
>
> An inspection of the MailMessage object (before I simplified that away)
> showed that there were no items in the header before this exception. A
> packet trace during the exception shows that the SMTP server responds
> properly and the object immediately replys with a "QUIT".
>
> I would greatly appreciate any insight that could be offered.
> Thanks,
> Andy
>

> hmmmm. im not sure... the "to", "from" fields all end up in the header...
> but ill post the code I use... hope it helps.
>
>    Adam - http://www.aejw.com/?page=contact
>
>
> public class emailMsg{
>
>   #region propertys
>
>   private string ls_smtpServer="localhost"; public string
> smtpServer{get{return(ls_smtpServer);}set{ls_smtpServer=value;}}
>   private string ls_Username="";    public string
> smtpUserName{get{return(ls_Username);}set{ls_Username=value;}}
>   private string ls_Password="";    public string
> smtpUserPassword{get{return(ls_Password);}set{ls_Password=value;}}
>   private bool   lf_useThreading=false;  public bool
> useThreading{get{return(lf_useThreading);}set{lf_useThreading=value;}}
>
>   private string ls_toAddress="";    public string
> to{get{return(ls_toAddress);}set{ls_toAddress=value;}}
>   private string ls_fromAddress="";   public string
> from{get{return(ls_fromAddress);}set{ls_fromAddress=value;}}
>   private string ls_subjectText="";   public string
> subject{get{return(ls_subjectText);}set{ls_subjectText=value;}}
>   private string ls_bodyText="test";   public string
> body{get{return(ls_bodyText);}set{ls_bodyText=value;}}
>
>   public enum emailContentType{
>    text=0,
>    html=1,
>   }
>
>   private emailContentType lt_Content=emailContentType.text;
>   public emailContentType
> bodyContent{get{return(lt_Content);}set{lt_Content=value;}}
>
>   #endregion
>
>   #region send mail functions
>
>   public void sendMail(){emailMsg.sendMail(this);}
>
>   static public void sendMail(emailMsg pMessage) {
>    //prep message
>    if(pMessage==null){
>     throw new Exception("'emailMessage' object is required");
>    }
>    if(pMessage.useThreading){
>     //set thread info
>     if(lo_EmailThreads==null) lo_EmailThreads=new
> System.Collections.ArrayList();
>     int iSel=lo_EmailThreads.Add(pMessage);
>     //start thread
>     System.Threading.Thread oThread = new System.Threading.Thread(new
> System.Threading.ThreadStart(z_ThreadSend));
>     oThread.Name=iSel.ToString();
>     oThread.Start();
>    }else{
>     //start non thread
>     z_SendMail(pMessage);
>    }
>   }
>
>
>   #endregion
>
>   #region private functions
>
>   private static System.Collections.ArrayList lo_EmailThreads = null;
>   private static void z_ThreadSend(){
>    int i=Convert.ToInt32(System.Threading.Thread.CurrentThread.Name);
>    emailMsg oMessage = (emailMsg)lo_EmailThreads[i];
>    lo_EmailThreads.Remove(i);
>    z_SendMail(oMessage);
>   }
>
>   private static void z_SendMail(emailMsg pMessage){
>
>             System.Net.Mail.SmtpClient client = new
> System.Net.Mail.SmtpClient();
>             client.Host = pMessage.smtpServer;
>             client.Send(pMessage.z_getMessage());
>
>    System.Threading.Thread.Sleep(10);
>   }
>
>   internal System.Net.Mail.MailMessage z_getMessage(){
>
>             System.Net.Mail.MailAddress to = new
> System.Net.Mail.MailAddress(this.to);
>             System.Net.Mail.MailAddress from = new
> System.Net.Mail.MailAddress(this.from);
>             System.Net.Mail.MailMessage oMailMessage = new
> System.Net.Mail.MailMessage(from, to);
>             oMailMessage.Subject = this.subject;
>             oMailMessage.Body = this.body;
>             oMailMessage.IsBodyHtml = (lt_Content == emailContentType.html);
>             oMailMessage.Priority = System.Net.Mail.MailPriority.Normal;
>
>    return(oMailMessage);
>   }
>
>
>   #endregion
>
>  }