ComponentPro UltimateMail

      Handling exceptions

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      Handling Exceptions

      Exceptions thrown by Mail component can be easily caught by using try catch block. The table below lists all exceptions relating to the Mail component: 

      Exception Description
      Pop3Exception The exception that is thrown when an error occurs while using Pop3 classes.
      MailException The exception that is thrown when an e-mail related error occurs.
      ProxySocketException The exception that is thrown when a proxy error or socket error occurs.


      The example below shows how to handle exceptions:

      using System;
      using System.Text;
      using ComponentPro.Net;
      using ComponentPro.Net.Mail;
      // POP3 server information. 
      const string serverName = "myserver";
      const string user = "";
      const string password = "mytestpassword";
      const int port = 995;
      const SslSecurityMode securityMode = SslSecurityMode.Implicit;
      // Create a new instance of the Pop3 class.
      Pop3 client = new Pop3();
          // Connect to the server. 
          client.Connect(serverName, port, securityMode);
          // Login to the server. 
          client.Authenticate(user, password);
          StringBuilder sb = new StringBuilder();
          Pop3MessageCollection list = client.ListMessages(Pop3EnvelopeParts.Size | Pop3EnvelopeParts.UniqueId);
          for (int i = 0; i < list.Count; i++)
              sb.AppendFormat("{0} - {1}\r\n", i + 1, list[i].UniqueId);
          // Close the connection. 
      catch (Exception exc)
          // Show error. 
          Console.WriteLine("Error: " + exc.Message);
          // Safely disconnect. 
          if (client.IsConnected)