学步园

if ((text2 != null) || (message.Fields.Count > 0))
{
object obj4 = SmtpMail.LateBoundAccessHelper.GetPropStatic(obj1, "Configuration");
if (obj4 != null)
{
if (text2 != null)
{
SmtpMail.LateBoundAccessHelper.SetPropStatic(obj4, "Fields", "http://schemas.microsoft.com/cdo/configuration/sendusing", 2);
SmtpMail.LateBoundAccessHelper.SetPropStatic(obj4, "Fields", "http://schemas.microsoft.com/cdo/configuration/smtpserver", text2);
SmtpMail.LateBoundAccessHelper.SetPropStatic(obj4, "Fields", "http://schemas.microsoft.com/cdo/configuration/smtpserverport", 0x19);
}
foreach (DictionaryEntry entry1 in message.Fields)
{
SmtpMail.LateBoundAccessHelper.SetPropStatic(obj4, "Fields", (string) entry1.Key, entry1.Value);
}
object obj5 = SmtpMail.LateBoundAccessHelper.GetPropStatic(obj4, "Fields");
SmtpMail.LateBoundAccessHelper.CallMethodStatic(obj5, "Update", new object[0]);
Marshal.ReleaseComObject(obj5);
Marshal.ReleaseComObject(obj4);
}
}

MailMessage myMail = new MailMessage();
myMail.Fields.Add("http://schemas.microsoft.com/cdo/configuration/sendusername",userName);
myMail.Fields.Add("http://schemas.microsoft.com/cdo/configuration/sendpassword",password);

MailMessage myMail = new MailMessage();
myMail.From = emailFrom;
myMail.To = emailTo;
myMail.Subject = subject;
myMail.Body = sb.ToString();
myMail.BodyFormat = MailFormat.Html;
myMail.Fields.Add("http://schemas.microsoft.com/cdo/configuration/sendusing","2");
myMail.Fields.Add("http://schemas.microsoft.com/cdo/configuration/sendemailaddress",emailFrom);
myMail.Fields.Add("http://schemas.microsoft.com/cdo/configuration/smtpuserreplyemailaddress",emailFrom);
myMail.Fields.Add("http://schemas.microsoft.com/cdo/configuration/smtpaccountname",userName);
myMail.Fields.Add("http://schemas.microsoft.com/cdo/configuration/sendusername",Your 163.com's userName);
myMail.Fields.Add("http://schemas.microsoft.com/cdo/configuration/sendpassword",your 163.com's password);
myMail.Fields.Add("http://schemas.microsoft.com/cdo/configuration/smtpauthenticate","1");
myMail.Fields.Add("http://schemas.microsoft.com/cdo/configuration/smtpserver","smtp.163.com");
//SmtpMail.SmtpServer = "smtp.163.com";
SmtpMail.Send(myMail);

public abstract class CdoConfiguration
{
// Fields
[MarshalAs(UnmanagedType.BStr)]
public const string cdoAutoPromoteBodyParts = "http://schemas.microsoft.com/cdo/configuration/autopromotebodyparts";
[MarshalAs(UnmanagedType.BStr)]
public const string cdoFlushBuffersOnWrite = "http://schemas.microsoft.com/cdo/configuration/flushbuffersonwrite";
[MarshalAs(UnmanagedType.BStr)]
public const string cdoHTTPCookies = "http://schemas.microsoft.com/cdo/configuration/httpcookies";
[MarshalAs(UnmanagedType.BStr)]
public const string cdoLanguageCode = "http://schemas.microsoft.com/cdo/configuration/languagecode";
[MarshalAs(UnmanagedType.BStr)]
public const string cdoNNTPAccountName = "http://schemas.microsoft.com/cdo/configuration/nntpaccountname";
[MarshalAs(UnmanagedType.BStr)]
public const string cdoNNTPAuthenticate = "http://schemas.microsoft.com/cdo/configuration/nntpauthenticate";
[MarshalAs(UnmanagedType.BStr)]
public const string cdoNNTPConnectionTimeout = "http://schemas.microsoft.com/cdo/configuration/nntpconnectiontimeout";
[MarshalAs(UnmanagedType.BStr)]
public const string cdoNNTPServer = "http://schemas.microsoft.com/cdo/configuration/nntpserver";
[MarshalAs(UnmanagedType.BStr)]
public const string cdoNNTPServerPickupDirectory = "http://schemas.microsoft.com/cdo/configuration/nntpserverpickupdirectory";
[MarshalAs(UnmanagedType.BStr)]
public const string cdoNNTPServerPort = "http://schemas.microsoft.com/cdo/configuration/nntpserverport";
[MarshalAs(UnmanagedType.BStr)]
public const string cdoNNTPUseSSL = "http://schemas.microsoft.com/cdo/configuration/nntpusessl";
[MarshalAs(UnmanagedType.BStr)]
public const string cdoPostEmailAddress = "http://schemas.microsoft.com/cdo/configuration/postemailaddress";
[MarshalAs(UnmanagedType.BStr)]
public const string cdoPostPassword = "http://schemas.microsoft.com/cdo/configuration/postpassword";
[MarshalAs(UnmanagedType.BStr)]
public const string cdoPostUserName = "http://schemas.microsoft.com/cdo/configuration/postusername";
[MarshalAs(UnmanagedType.BStr)]
public const string cdoPostUserReplyEmailAddress = "http://schemas.microsoft.com/cdo/configuration/postuserreplyemailaddress";
[MarshalAs(UnmanagedType.BStr)]
public const string cdoPostUsingMethod = "http://schemas.microsoft.com/cdo/configuration/postusing";
[MarshalAs(UnmanagedType.BStr)]
public const string cdoSaveSentItems = "http://schemas.microsoft.com/cdo/configuration/savesentitems";
[MarshalAs(UnmanagedType.BStr)]
public const string cdoSendEmailAddress = "http://schemas.microsoft.com/cdo/configuration/sendemailaddress";
[MarshalAs(UnmanagedType.BStr)]
public const string cdoSendPassword = "http://schemas.microsoft.com/cdo/configuration/sendpassword";
[MarshalAs(UnmanagedType.BStr)]
public const string cdoSendUserName = "http://schemas.microsoft.com/cdo/configuration/sendusername";
[MarshalAs(UnmanagedType.BStr)]
public const string cdoSendUserReplyEmailAddress = "http://schemas.microsoft.com/cdo/configuration/senduserreplyemailaddress";
[MarshalAs(UnmanagedType.BStr)]
public const string cdoSendUsingMethod = "http://schemas.microsoft.com/cdo/configuration/sendusing";
[MarshalAs(UnmanagedType.BStr)]
public const string cdoSMTPAccountName = "http://schemas.microsoft.com/cdo/configuration/smtpaccountname";
[MarshalAs(UnmanagedType.BStr)]
public const string cdoSMTPAuthenticate = "http://schemas.microsoft.com/cdo/configuration/smtpauthenticate";
[MarshalAs(UnmanagedType.BStr)]
public const string cdoSMTPConnectionTimeout = "http://schemas.microsoft.com/cdo/configuration/smtpconnectiontimeout";
[MarshalAs(UnmanagedType.BStr)]
public const string cdoSMTPServer = "http://schemas.microsoft.com/cdo/configuration/smtpserver";
[MarshalAs(UnmanagedType.BStr)]
public const string cdoSMTPServerPickupDirectory = "http://schemas.microsoft.com/cdo/configuration/smtpserverpickupdirectory";
[MarshalAs(UnmanagedType.BStr)]
public const string cdoSMTPServerPort = "http://schemas.microsoft.com/cdo/configuration/smtpserverport";
[MarshalAs(UnmanagedType.BStr)]
public const string cdoSMTPUseSSL = "http://schemas.microsoft.com/cdo/configuration/smtpusessl";
[MarshalAs(UnmanagedType.BStr)]
public const string cdoURLGetLatestVersion = "http://schemas.microsoft.com/cdo/configuration/urlgetlatestversion";
[MarshalAs(UnmanagedType.BStr)]
public const string cdoURLProxyBypass = "http://schemas.microsoft.com/cdo/configuration/urlproxybypass";
[MarshalAs(UnmanagedType.BStr)]
public const string cdoURLProxyServer = "http://schemas.microsoft.com/cdo/configuration/urlproxyserver";
[MarshalAs(UnmanagedType.BStr)]
public const string cdoUseMessageResponseText = "http://schemas.microsoft.com/cdo/configuration/usemessageresponsetext";
}