Send user Confirmation email after Registration.

Abhilash J A

Hello everyone,

I am trying to implement Email confirmation after user registration. Then, I can find the answer from this link http://www.aspsnippets.com/Articles/Send-user-Confirmation-email-after-Registration-with-Activation-Link-in-ASPNet.aspx

After using this code, I got an error

Unable to read data from the transport connection: net_io_connectionclosed.

How can I solve this?

Please help me.

Advance thanks.

7 Replies

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

Vinay Singh10y ago
Accepted answer
Please check the user is and password provided in code
+1
Rajeesh Menoth10y ago
Hi,
In my article I mentioned the authentication issues also.
Reference :
http://www.c-sharpcorner.com/blogs/smtp-server-requires-a-secure-connection1
0
Bikesh Srivastava10y ago
Hi Abhilash ,
Check again your secure app ,beacuse this error due to this.
The SMTP server requires a secure connection or the client was not authenticated. The server response was: 5.5.1 Authentication Required. Learn more at
only reason is secure app turn off.
+1
Abhilash J A10y ago
Hello Everyone,
Thanks for reply me to all. This problem is solved. But another one is raised now. That is,
The SMTP server requires a secure connection or the client was not authenticated. The server response was: 5.5.1 Authentication Required. Learn more at
But, I have enabled Gmail secure apps is Turn on. Still this error occurred.
0
Bikesh Srivastava10y ago
Try this..
privatevoidSendActivationEmail(intuserId)
{
stringconstr=ConfigurationManager.ConnectionStrings["constr"].ConnectionString;
stringactivationCode=Guid.NewGuid().ToString();
using(SqlConnectioncon=newSqlConnection(constr))
{
using(SqlCommandcmd=newSqlCommand("INSERTINTOUserActivationVALUES(@UserId,@ActivationCode)"))
{
using(SqlDataAdaptersda=newSqlDataAdapter())
{
cmd.CommandType=CommandType.Text;
cmd.Parameters.AddWithValue("@UserId",userId);
cmd.Parameters.AddWithValue("@ActivationCode",activationCode);
cmd.Connection=con;
con.Open();
cmd.ExecuteNonQuery();
con.Close();
}
}
}
using(MailMessagemm=newMailMessage("[email protected]",txtEmail.Text))
{
mm.Subject="AccountActivation";
stringbody="Hello"+txtUsername.Text.Trim()+",";
body+="

Pleaseclickthefollowinglinktoactivateyouraccount";
body+="
+Request.Url.AbsoluteUri.Replace("CS.aspx","CS_Activation.aspx?ActivationCode="+activationCode)+"'>Clickheretoactivateyouraccount.";
body+="

Thanks";
mm.Body=body;
mm.IsBodyHtml=true;
SmtpClientsmtp=newSmtpClient();
smtp.Host="smtp.gmail.com";
smtp.EnableSsl=true;
NetworkCredentialNetworkCred=newNetworkCredential("[email protected]","");
smtp.UseDefaultCredentials=true;
smtp.Credentials=NetworkCred;
smtp.Port=587;
smtp.Send(mm);
}
}
I have done already in my project,its working fine.
+1
Rajeesh Menoth10y ago
Hi,

Use proper smtp port id. More about refer my article.

Reference :

http://www.c-sharpcorner.com/UploadFile/2a6dc5/how-to-send-a-email-using-Asp-Net-C-Sharp/

Similar Threads :

http://stackoverflow.com/questions/20228644/smtpexception-unable-to-read-data-from-the-transport-connection-net-io-connect

http://stackoverflow.com/questions/17497154/smtpexception-unable-to-read-data-from-the-transport-connection-net-io-connec
+1
Vinay Singh10y ago
Hi
Please upload the code and then test. Region we will not able to send email from local using gmail. so upload it on server and then test.
or use some other smtp service to send email
+1

Send user Confirmation email after Registration.

Unable to read data from the transport connection: net_io_connectionclosed.

The SMTP server requires a secure connection or the client was not authenticated. The server response was: 5.5.1 Authentication Required. Learn more at

The SMTP server requires a secure connection or the client was not authenticated. The server response was: 5.5.1 Authentication Required. Learn more at