error in smtp sending mail reg

Gowtham manju

15y3.1k.NET

protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{ }
}
protected void Button1_Click(object sender, EventArgs e)
{
Response.Write(SendMail("[email protected]", "[email protected]", "[email protected]", "Test Mail", "Test Mail Body"));
}
public string SendMail(string toList, string from, string ccList, string subject, string body)
{
MailMessage message = new MailMessage();
SmtpClient smtpClient = new SmtpClient();
string msg = string.Empty;
try
{
MailAddress fromAddress = new MailAddress(from);
message.From = fromAddress;
message.To.Add(toList);
if (ccList != null && ccList != string.Empty)
message.CC.Add(ccList);
message.Subject = subject;
message.IsBodyHtml = true;
message.Body = body;
smtpClient.Host = "mail.letrouters.com";
smtpClient.Port = 25;
smtpClient.UseDefaultCredentials = true;
smtpClient.Credentials = new System.Net.NetworkCredential("[email protected]", "xxxxx");

smtpClient.Send(message);
msg = "Successful";
}
catch (Exception ex)
{
Response.Write(ex.Message);
}

return msg;
}

21 Replies

Know the answer? Post it — somebody with the same question will find it here.

Abhimanyu K Vatsa15y ago
Accepted answer
means, there is something problem with smtp settings, plz reply which email server you are using. gmail, yahoo or your own website mail address.

Look at this article to configure outlook (so that you can check your smtp, if works with outlook then will with asp):-

http://www.vbdotnetheaven.com/UploadFile/abhikumarvatsa/1472/
Gowtham manju15y ago
thanks for ur help in posting this guidelines abhimanyu be in touch! cherrs codings gowtham
Abhimanyu K Vatsa15y ago
Please don't mind, we are same here. I'm like you, who loves to answer in forum. If you still find any coding error, most welcome here always. We all MindCracker friends are here to help each other by sharing our thoughts, blogs, articles and most important answering in forum etc.

For this issue,

First, check out your smtp by contacting to hosting company's tech team. They will provide you the informations.

Second, post the sample codes that you will be using and getting errors.

Note: Sometimes smtp works on outlook but not on site mailing list, this could be an issue. This issue comes because of some authentication or say settings on mail server. Ask from Host Tech Team for this. Even you can ask for sample code from them. If they will not provide you then switch your host. Alternatively, you can use gmail or yahoo smtp, that's free.

Hope this helps.
Gowtham manju15y ago
sorry dude ! here after i will not i am getting errors in procedures tat y i asked..........
Abhimanyu K Vatsa15y ago
please don't mind....

do u think the code me and another members has given, is not sufficient? now asking for zipped.

Remember this is forum, and any forum provide milk and rice only....that's your job to make (cook) it kheer.
Gowtham manju15y ago
ya dude i looking through article posted by u on title Registration + Login + Email-id verification Scenario in C# link is http://www.c-sharpcorner.com/UploadFile/abhikumarvatsa/7255/ i am just verifying by implementing it can u able to provide me full source code in zip files which might be help full for me waiting for ur responce
Abhimanyu K Vatsa15y ago
you want to send (mail) the registration details to user who is registering...right Gawtham.
If so, then you have to create (configure) your smtp here too, this also requires the smtp. If you have, create some functions in code-behind which inserts the user details (id, pass, etc) to database and call another function to send the mail containing his infos. Here you go...

protected void submit_Click(object sender, EventArgs e)
{

execution(); //this function will insert the record (id, pass etc in db) and send the mail too.

}

public void execution()
{
//place the sql insert methods there
sendmail(fullname, emailid, username, password);
}

public void sendmail(string fullname, string emailid, string username, string password)
{
string smsg = "New Registration:
";
smsg += "
Name: " + fullname;
smsg += "
Username: " + username;
smsg += "
Password: " + password;
smsg += "

";
smsg += "Administrator";

MailMessage message = new MailMessage();
try
{
message.To.Add(new MailAddress(emailid));
message.From = new MailAddress("[email protected]");

message.Subject = "New Registration";
message.Body = smsg;
message.IsBodyHtml = true;

SmtpClient client = new SmtpClient();
client.Port = 587; // Gmail works on this port 587
client.Host = "smtp.gmail.com";
System.Net.NetworkCredential nc = new System.Net.NetworkCredential("[email protected]", "password");
client.EnableSsl = true;
client.UseDefaultCredentials = false;
client.Credentials = nc;
client.Send(message);
}
catch
{
//place the catch statements here
}
}

Place any url for verification in your mail or you may send any random number in email and ask the user to verify using that number.

Hope this helps
Suthish Nair15y ago
contact your network team for smtp settings and configuration.
Gowtham manju15y ago
thanks buddy! i think it i will find the solution !!!!!!have u ever know how to send auto response emails to the user wen he register in to our account.it includes both sending of username and passwords or clicking the link den it account is activated...can u help me in this
Abhimanyu K Vatsa15y ago
Using your hosting control panel you can setup the smtp or you may ask from hosting company for more details. when they provide you check it on outlook first.
Gowtham manju15y ago
we are using sqwebmail server through which we have hosted our website.i need to send mail to that mails
Gowtham manju15y ago
i too have suceeded in sending and retriving gmail inboxes but when i tried to retrive my company mail inbox it retrived me errors
Gowtham manju15y ago
ya Abhimanyu..! i am trying to configure in outlook it gives me error can u send me ur source code for sending mails in zip files so that i will look through it waiting for ur responces
Abhimanyu K Vatsa15y ago
God, can't believe..

Gowtham....it is still working live for my many customers. I recommend you to check out your smtp using outlook before proceeding.
Gowtham manju15y ago
it too does not helped me can u give another solutions
Abhimanyu K Vatsa15y ago
plz note, if you where working with your own domain (email) other than yahoo, gmail etc then you should have running smtp details, to check this by configuring smtp with outlook express, if you success here then come to coding.

find the sample code working for me (i'm using gmail here):-

public void sendmail(string abc, string xxx, string abx)
{
//constructing html based email
string smsg = "Your email content here:
";
smsg += "
Test: " + abc;
smsg += "
Test: " + xxx;
smsg += "
Test: " + abx;
smsg += "

";
smsg += "Test";

MailMessage message = new MailMessage();
try
{
message.To.Add(new MailAddress("receiver-email-id")); //you may find this from db too
message.From = new MailAddress("[email protected]");

message.Subject = "Your Subject";
message.Body = smsg;
message.IsBodyHtml = true;

SmtpClient client = new SmtpClient();
client.Port = 587; //Gmail works on port 587 for me
client.Host = "smtp.gmail.com";
System.Net.NetworkCredential nc = new System.Net.NetworkCredential("[email protected]", "password");
client.EnableSsl = true;
client.UseDefaultCredentials = false;
client.Credentials = nc;
client.Send(message);
}
catch
{
//place the catch statements here
}
}

Now call this function as

sendmail(a.Text, b.Text, c.Text);
15y ago
http://www.codeproject.com/Questions/58761/No-connection-could-be-made-because-the-target-mac.aspx
Gowtham manju15y ago
cau u provide me solution that how to check it
15y ago
Are you able to access 174.133.162.186:25 machine? Check the SMTP port is opened, any firewall/any application is blocking the SMTP port.
And check SMTP server is installed on the 174.133.162.186 machine.
Gowtham manju15y ago
i am getting only
============================================================================================ System.Net.Mail.SmtpException was caught Message="Failure sending mail.
" Source="System" StackTrace: at System.Net.Mail.SmtpClient.Send(MailMessage message)
at mail2.SendMail(String toList, String from, String ccList, String subject, String body)
in c:\Documents and Settings\Administrator\Desktop\mail\mail2.aspx.cs:
line 44 InnerException: System.Net.WebException Message="Unable to connect to the remote server" Source="System" StackTrace: at System.Net.ServicePoint.GetConnection(PooledStream PooledStream, Object owner, Boolean async, IPAddress& address, Socket& abortSocket, Socket& abortSocket6, Int32 timeout) at System.Net.PooledStream.Activate(Object owningObject, Boolean async, Int32 timeout, GeneralAsyncDelegate asyncCallback) at System.Net.PooledStream.Activate(Object owningObject, GeneralAsyncDelegate asyncCallback) at System.Net.ConnectionPool.GetConnection(Object owningObject, GeneralAsyncDelegate asyncCallback, Int32 creationTimeout) at System.Net.Mail.SmtpConnection.GetConnection(String host, Int32 port) at System.Net.Mail.SmtpTransport.GetConnection(String host, Int32 port) at System.Net.Mail.SmtpClient.GetConnection() at System.Net.Mail.SmtpClient.Send(MailMessage message) InnerException: System.Net.Sockets.SocketException Message="No connection could be made because the target machine actively refused it 174.133.162.186:25" Source="System" ErrorCode=10061 NativeErrorCode=10061 StackTrace: at System.Net.Sockets.Socket.DoConnect(EndPoint endPointSnapshot, SocketAddress socketAddress) at System.Net.Sockets.Socket.InternalConnect(EndPoint remoteEP) at System.Net.ServicePoint.ConnectSocketInternal(Boolean connectFailure, Socket s4, Socket s6, Socket& socket, IPAddress& address, ConnectSocketState state, IAsyncResult asyncResult, Int32 timeout, Exception& exception) InnerException: ============================================================================================
15y ago
Can you post the error message or error code information?