The request failed with HTTP status 401: Unauthorized

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SQL-Server-2005

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Hello friends,

I am facing a problem in a Web Service. I am giving user the privilege that he can send a mail to a client from the desktop application i.e., our project , on the click of a button. For that I have made a web service but on sending a mail through that an error is coming that: "The request failed with HTTP status 401: Unauthorized".

I have added this web service to my web server and have added a web reference for performing the task through my desktop application after passing appropriate parameters to the send function.

I couldn't able to found an appropriate solution to this problem on any blog so i decided at last to give Code Project a try. I am attaching the code which is being executed on the web service.

public string sendEmail(string to_mail, string from_mail, string cc_mail, string bcc_mail, string subject, string body)<br />
    {<br />
        try<br />
        {<br />
            MailMessage mailuser = new MailMessage(from_mail, to_mail, subject, body);<br />
            if (bcc_mail != "")<br />
            {<br />
                MailAddress bccCopy = new MailAddress(bcc_mail);<br />
                mailuser.Bcc.Add(bccCopy);<br />
            }            <br />
            if (cc_mail != "")<br />
            {<br />
                MailAddress ccCopy = new MailAddress(cc_mail);<br />
                mailuser.CC.Add(ccCopy);<br />
            }            <br />
            //mailuser.Attachments.Add(fileName);<br />
            //Attachment Attachment = new Attachment(file);<br />
            //mailuser.Attachments.Add(Attachment);<br />
<br />
            mailuser.IsBodyHtml = true;            <br />
<br />
            NetworkCredential basicAuthenticationInfo = new NetworkCredential("<user name="">", "<password>");<br />
            SmtpClient mailClient = new SmtpClient();<br />
            mailClient.Host = "<host address="">";<br />
            mailClient.UseDefaultCredentials = false;<br />
            mailClient.Credentials = basicAuthenticationInfo;<br />
<br />
            mailClient.Send(mailuser);<br />
            return "Mail Sent Successfully";<br />
        }<br />
        catch(Exception ex)<br />
        {<br />
            return ex.Message;<br />
        }<br />
    }<br />
</host></password></user>

If any one out there can help me resolve this error, I would appreciate his/her concern.

Thanks

Posted 16-Aug-10 19:59pm

Varun Sareen

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suzeets · Answer 1 · 2010-08-17T01:27:00

try
{
string to = "help@xxx.com";
string from = "help@xxx.com";
string subject = "Help";
string body = "First name:- " + txtFirstName.Text + Environment.NewLine + "Last Name :-" + txtLastName.Text + Environment.NewLine + "Email:- " + txtEmail.Text + Environment.NewLine + "Ph No:- " + txtMobileNo.Text + Environment.NewLine + "Messsage:-" + txtPleasefeel.Text.Trim();
MailMessage message = new MailMessage(from, to, subject, body);
SmtpClient client = new SmtpClient("smtp.gmail.com",587);

client.EnableSsl = true;// enable must in webconfig file

client.UseDefaultCredentials = true;
client.Credentials = new NetworkCredential("help@xxx.com","password"); // password-as ur
client.Send(message);
litStatus.Text = "Sent Successfully...";
txtFirstName.Text = "";
txtMiddleName.Text = "";
txtLastName.Text = "";
txtEmail.Text = "";
txtMobileNo.Text = "";
txtPleasefeel.Text = "";
}
catch (Exception ex)
{
litStatus.Visible = true;
litStatus.Text = "Server OverLoaded...";
}

///////////////////////////////////////////
in web config file at last

XML

<system.diagnostics>
   <trace autoflush="true" />
   <sources>
     <source name="System.Net" >
       <listeners>
         <add name="MyTraceFile"/>
       </listeners>
     </source>
     <source name="System.Net.Sockets">
       <listeners>
         <add name="MyTraceFile"/>
       </listeners>
     </source>
   </sources>

   <sharedListeners>
     <add
       name="MyTraceFile"
       type="System.Diagnostics.TextWriterTraceListener"
       initializeData="System.Net.trace.log" />
   </sharedListeners>
   <switches>
     <add name="System.Net" value="Verbose" />
     <add name="System.Net.Sockets" value="Verbose" />
   </switches>
 </system.diagnostics>

Corinna John · Answer 2 · 2010-08-17T01:14:00

Solution 1

Your web server doesn't allow the user to access the service. I guess you service is not even called, because the web server blocks out the user.

Please make sure that there is no HTTP protection on any directories in the web service's path.
Check your proxy settings and make sure they are actually used.

Posted 17-Aug-10 1:14am

Corinna John

Comments

Varun Sareen 17-Aug-10 12:49pm

Reason for my vote of 3
I got the solution myself dear Corinna..some anonymous check box was unchecked.in IIS virtual directory..so the request was not accepted :)