Click here to Skip to main content
12,954,199 members (52,199 online)
Rate this:
Please Sign up or sign in to vote.
See more:
My code:

  private void button1_Click(object sender, EventArgs e)
                MailMessage mail = new MailMessage();
                mail.From = new MailAddress("");
                mail.Subject = "School Name";
                string Body = txtmsg.Text;
                mail.IsBodyHtml = true;
                SmtpClient smtp = new SmtpClient("localhost", 25);
                smtp.Host = ""; //Or Your SMTP Server Address  
                smtp.Credentials = new System.Net.NetworkCredential
                     ("", "rima001");
                smtp.DeliveryMethod = SmtpDeliveryMethod.Network;
                smtp.EnableSsl = true;
                MessageBox.Show("Mail Send");
            catch (Exception ex)

My App.Config :

<?xml version="1.0" encoding="utf-8" ?>
      <smtp deliveryMethod="PickupDirectoryFromIis">
        <network defaultCredentials="true" host="localhost" port="25"/>

Error: Failure sending mail

Can anybody tell me where is the problem for sending mail in windows application ? Please help me.
Posted 29-Jun-12 23:52pm
barneyman 30-Jun-12 6:18am
i do hope you haven't just handed the world your gmail password! I'd change it pretty quick
Dhinesh kumar.V 31-Oct-12 2:59am
Hi All,

Is there any possibility for send mail from any other ID like yahoo,hotmail.. I had done for gmail for long ago but dont know for other id... all replies welcome..
Rate this: bad
Please Sign up or sign in to vote.

Solution 1

Gmail's send port is 587 not 25.
UL UL ALBAB 30-Jun-12 6:22am
Thank You. This is working...
Rate this: bad
Please Sign up or sign in to vote.

Solution 2


This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

    Print Answers RSS
Top Experts
Last 24hrsThis month
OriginalGriff 6,464
CHill60 3,490
Maciej Los 3,123
ppolymorphe 2,020
Jochen Arndt 1,975

Advertise | Privacy | Mobile
Web02 | 2.8.170525.1 | Last Updated 30 Jun 2012
Copyright © CodeProject, 1999-2017
All Rights Reserved. Terms of Service
Layout: fixed | fluid

CodeProject, 503-250 Ferrand Drive Toronto Ontario, M3C 3G8 Canada +1 416-849-8900 x 100