how to send email in ASP .NET?

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Hi.... I have developed an application where I want to send email. But it's getting me an error "An attempt was made to access a socket in a way forbidden by its access permissions [2607:f8b0:400e:c02::6d]:587". Please Help me. Thanks in advance.

Web.Config File:

XML

<configuration>

    <system.web>
      <compilation debug="false" targetFramework="4.5" />
      <httpRuntime targetFramework="4.5" />
    </system.web>
  <appSettings>
    <add key="SendMail" value="true"/>
  </appSettings>
</configuration>

CS File:

C#

protected void Button1_Click(object sender, EventArgs e)
    {

        MailMessage mail = new MailMessage("xxxxxxxx@gmail.com", "xxxxxxxx@gmail.com");
        mail.Subject = "Mail Message";
        mail.Body = TextBox1.Text;
        SmtpClient sc = new SmtpClient("smtp.gmail.com", 587);
        sc.Credentials = new System.Net.NetworkCredential()
        {
            UserName = "xxxxxxxx@gmail.com",
            Password = "********"
        };
        sc.EnableSsl = true;
        sc.Send(mail);// My browser shows above error at this point.
        }

[Edit]Email address removed (changed original address into xxxxxxxx@gmail.com)[/Edit]

Posted 17-May-13 6:12am

Chiklu.Soumya

Updated 17-May-13 6:21am

Thomas Daniels

v4

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Comments

Sergey Alexandrovich Kryukov 17-May-13 12:19pm

Make sure you can send e-mail throw the same service with these credentials. For check up, you can use some available mail program.
—SA

bbirajdar 17-May-13 12:19pm

If you are sending email over SSl , then use SMTP Port 465

Chiklu.Soumya 17-May-13 12:25pm

Yes I had used 465 port no. But it's getting same error. Please find error in my code. Thanks for your reply.

Thomas Daniels 17-May-13 12:26pm

Never post your email address, if you don't like spam! If you want to know why you shouldn't post your email address, have a look here:
http://ask-leo.com/why_shouldnt_i_post_my_email_address_in_a_public_forum.html[^]

Chiklu.Soumya 17-May-13 12:30pm

Thankx for updating my quest. Will not commit this mistake again.

Lucifier Rocks 18-May-13 8:23am

Use can use port number 587 for sending mails as in most of the cases it accepts the port number apart from this ssl should be enabled

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Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ) · Accepted Answer · 2013-05-17T19:39:00

Solution 1

Hello @Chiklu.Soumya,

Please follow my answer - sending email to gmail from asp.net[^].

This code is working perfectly.

Please replace your email ids and passwords correctly and test.

In case you face any difficulty, please reply me.

Posted 17-May-13 19:39pm

Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ)

Comments

Chiklu.Soumya 18-May-13 4:24am

Thannks For your reply. But your code getting this error. Please find a solution. Once again Thank You.

"System.Net.Mail.SmtpException: Failure sending mail. ---> System.Net.WebException: Unable to connect to the remote server ---> System.Net.Sockets.SocketException: An attempt was made to access a socket in a way forbidden by its access permissions [2607:f8b0:400e:c02::6c]:587 at System.Net.Sockets.Socket.DoConnect(EndPoint endPointSnapshot, SocketAddress socketAddress) at System.Net.ServicePoint.ConnectSocketInternal(Boolean connectFailure, Socket s4, Socket s6, Socket& socket, IPAddress& address, ConnectSocketState state, IAsyncResult asyncResult, Exception& exception) --- End of inner exception stack trace --- at System.Net.ServicePoint.GetConnection(PooledStream PooledStream, Object owner, Boolean async, IPAddress& address, Socket& abortSocket, Socket& abortSocket6) at System.Net.PooledStream.Activate(Object owningObject, Boolean async, 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(ServicePoint servicePoint) at System.Net.Mail.SmtpTransport.GetConnection(ServicePoint servicePoint) at System.Net.Mail.SmtpClient.GetConnection() at System.Net.Mail.SmtpClient.Send(MailMessage message) --- End of inner exception stack trace --- at System.Net.Mail.SmtpClient.Send(MailMessage message) at _Default.Page_Load(Object sender, EventArgs e)System.Net.WebException: Unable to connect to the remote server ---> System.Net.Sockets.SocketException: An attempt was made to access a socket in a way forbidden by its access permissions [2607:f8b0:400e:c02::6c]:587 at System.Net.Sockets.Socket.DoConnect(EndPoint endPointSnapshot, SocketAddress socketAddress) at System.Net.ServicePoint.ConnectSocketInternal(Boolean connectFailure, Socket s4, Socket s6, Socket& socket, IPAddress& address, ConnectSocketState state, IAsyncResult asyncResult, Exception& exception) --- End of inner exception stack trace --- at System.Net.ServicePoint.GetConnection(PooledStream PooledStream, Object owner, Boolean async, IPAddress& address, Socket& abortSocket, Socket& abortSocket6) at System.Net.PooledStream.Activate(Object owningObject, Boolean async, 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(ServicePoint servicePoint) at System.Net.Mail.SmtpTransport.GetConnection(ServicePoint servicePoint) at System.Net.Mail.SmtpClient.GetConnection() at System.Net.Mail.SmtpClient.Send(MailMessage message)System.Net.Sockets.SocketException (0x80004005): An attempt was made to access a socket in a way forbidden by its access permissions [2607:f8b0:400e:c02::6c]:587 at System.Net.Sockets.Socket.DoConnect(EndPoint endPointSnapshot, SocketAddress socketAddress) at System.Net.ServicePoint.ConnectSocketInternal(Boolean connectFailure, Socket s4, Socket s6, Socket& socket, IPAddress& address, ConnectSocketState state, IAsyncResult asyncResult, Exception& exception) "

Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ) 18-May-13 6:59am

Ok. The problem may be due to the Firewall or Antivirus preventing port 587 to send the mail.
So, try making your Firewall and Antivirus off. Then send a mail with the code.

Chiklu.Soumya 18-May-13 9:09am

Thank you so much............. Tadit Dash.I can't express my happiness with your code. Thank you once again. Your code works perfectly. I"ll never forget your help. I added an exception to windows firewall for port no 587. Then i turned off antivirus. Finally it worked.

Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ) 20-May-13 3:19am

Most welcome buddy. My pleasure... :)
I am glad that it helped. And this appreciation means a lot to me, my friend.

Thanks a lot for appreciating and accepting the answer....

Regards,
Tadit

Member 12959647 20-Jan-17 6:39am

Does gmail has made any additional securities recently. I tried all ways but couldn't able to send mail after hosting. But can send in localhost. Am getting same error as above

Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ) 23-Jan-17 5:11am

Not sure. Did you try handling the exceptions? Are you getting any?

Member 12959647 20-Jan-17 6:44am

Also antivirus might block in localhost or else will it effect the hosting site also? Please reply

Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ) 7-Jun-17 5:04am

Yes it might block. You have to allow that port.

Shailendra Kumrawat 7-Jun-17 2:53am

my code giver this error (An attempt was made to access a socket in a way forbidden by its access permissions) on hosting but localhost working fine