Send email through gmail smtp server,, using C# – sample

Gmail is providing free smtp server so does yahoo. The sample below is using gmail.


using System.Net.Mail;

using System.Net;


namespace ConAppNetMail


  class Program


    static void Main(string[] args)


      MailMessage newMessage = new MailMessage();

      SmtpClient mailService = new SmtpClient(); 


      //set the addresses

      newMessage.From = new MailAddress(“”);



      //set the content

      newMessage.Subject = “This is an email”;

      newMessage.Body = “this is the body content of the email.”;


      //send the messag

      mailService.Port = 587;


      mailService.EnableSsl = true;


      mailService.UseDefaultCredentials = false;

      mailService.DeliveryMethod = SmtpDeliveryMethod.Network;


      mailService.Host = “”;


      //to change the port (default is 25), we set the port property

      mailService.Credentials = new NetworkCredential(“”, “password”);






Download the complete code from The sample file name is ConAppNetMail1.rar. My MSN ID is



About chanmingman

Since March 2011 Microsoft Live Spaces migrated to Wordpress ( till now, I have is over 1 million viewers. This blog is about more than 50% telling you how to resolve error messages, especial for Microsoft products. The blog also has a lot of guidance teaching you how to get stated certain Microsoft technologies. The blog also uses as a help to keep my memory. The blog is never meant to give people consulting services or silver bullet solutions. It is a contribution to the community. Thanks for your support over the years. Ming Man is Microsoft MVP since year 2006. He is a software development manager for a multinational company. With 25 years of experience in the IT field, he has developed system using Clipper, COBOL, VB5, VB6, VB.NET, Java and C #. He has been using Visual Studio (.NET) since the Beta back in year 2000. He and the team have developed many projects using .NET platform such as SCM, and HR based applications. He is familiar with the N-Tier design of business application and is also an expert with database experience in MS SQL, Oracle and AS 400.
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