Mailbox name not allowed. The server response was: Sorry, that domain isn't in my list of allowed rcpthosts.

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Not able to send email from godaddy server. Getting following error,
Mailbox name not allowed. The server response was: Sorry, that domain isn't in my list of allowed rcpthosts.

Here is my code snippet.

C#

System.Net.Mail.SmtpClient Mail = new System.Net.Mail.SmtpClient();

        Mail.Host = "smtpout.secureserver.net";
        Mail.Port = 3535;
        Mail.Timeout = 10000;
        
        string username = null;
        string Password = null;


        Mail.DeliveryMethod = System.Net.Mail.SmtpDeliveryMethod.Network;
        username = txtUsername.Text.Trim();
        Password = txtPassword.Text.Trim();
        System.Net.NetworkCredential basicAuthenticationInfo = new System.Net.NetworkCredential(username, Password);

        Mail.UseDefaultCredentials = false;
        Mail.Credentials = basicAuthenticationInfo;

        System.Net.Mail.MailMessage myMail = new System.Net.Mail.MailMessage();
        myMail.Subject = "Test Email";

        myMail.From = new System.Net.Mail.MailAddress(txtFrom.Text, txtFrom.Text);
        myMail.To.Add(new System.Net.Mail.MailAddress(txtTo.Text));


        myMail.IsBodyHtml = true;
        myMail.Body = "Test Email";


        try
        {
            Mail.Send(myMail);
            lblmsg.Text = "Message send successfully.";
        }
        catch (Exception ex)
        {
            lblmsg.Text = ex.Message.ToString();
        }

I have tried with port 25 and 3535 but same error is coming.

Posted 29-Mar-12 19:11pm

Mukund Thakker

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Mike Thom · Answer 1 · 2012-03-29T23:34:00

Solution 2

Please check following links,

http://forums.asp.net/post/1132700.aspx[^]

http://forums.asp.net/t/939893.aspx/1[^]

Posted 29-Mar-12 23:34pm

Mike Thom

swapnilKumbhar · Answer 2 · 2012-03-30T00:14:00

This is a server configuration, nothing a programmer can fix without access to the server. You're not allowed to relay through that server to the destination domain, and only the server admin can fix that for you.

Replace your code with this code And check weather it works fine or not.
I checked it and works fine from my side.

try
{
SmtpClient client = new SmtpClient("smtpout.secureserver.net", 3535);
System.Net.NetworkCredential myCache = new System.Net.NetworkCredential("complete email id", "password");
client.Credentials = myCache;
// Specify the message content.
MailMessage message = new MailMessage(pankaj@idjo.org, "pankaj@idjo.org");
message.Body ="test";
message.Subject ="test";
client.Send(message);
message.Dispose();
Console.WriteLine("Sent email to: " + "pankaj@idjo.org");
}
catch (Exception ex)
{
Console.WriteLine("{0} Exception caught.", ex);
}

Uday P.Singh · Answer 3 · 2012-03-29T19:43:00

Solution 1

Try This[^]

hope it helps :)

Posted 29-Mar-12 19:43pm

Uday P.Singh

Comments

Mukund Thakker 30-Mar-12 2:06am

I have already checked this, gives following error,

Mailbox name not allowed. The server response was: Sorry, that domain isn't in my list of allowed rcpthosts.

abhinavvijay · Answer 4 · 2013-04-20T08:03:00

SmtpClient ss = new SmtpClient();
               ss.Host = "relay-hosting.secureserver.net";
                ss.Port = 25;
                ss.Timeout = 10000;
                ss.DeliveryMethod = SmtpDeliveryMethod.Network;
                ss.UseDefaultCredentials = false;
                ss.Credentials = new NetworkCredential("your_full_emailAddress", "YourPassword", "your_Domain");
                ss.EnableSsl = false;
 
                MailMessage mailMsg = new MailMessage("your_full_emailAddress", "demo@gmail.com", "subject here", "my body");
                mailMsg.DeliveryNotificationOptions = DeliveryNotificationOptions.OnFailure;
                ss.Send(mailMsg);
 
                Response.Write("Mail Sent");

Mailbox name not allowed. The server response was: Sorry, that domain isn't in my list of allowed rcpthosts.

4 solutions

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