Upload server Error On sending Email in Asp.net

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C#3.0

C#

Security Exception
Description: The application attempted to perform an operation not allowed by the security policy. To grant this application the required permission please contact your system administrator or change the application's trust level in the configuration file.

Exception Details: System.Security.SecurityException: Request for the permission of type 'System.Net.Mail.SmtpPermission, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed.

Source Error:


Line 25: SmtpClient smtp = new SmtpClient();
Line 26: smtp.Host = "smtp.gmail.com"; //Or Your SMTP Server Address
Line 27: smtp.Port = 587;
Line 28: smtp.EnableSsl = true;
Line 29: smtp.Credentials = new System.Net.NetworkCredential("rojgarjob@gmail.com", "myPassword");


Source File: d:\hosting\11709406\html\rojgar\ContactUs.aspx.cs Line: 27