Why Image is not shown in Outlook during the mail sending process via asp.net with C#?

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I am unable to view the Image on sending mail via asp.net with c# 2.0/c# 1.1. My code as follows:

C#

string strMailContent = "Welcome new user";
string fromAddress = "alexander.junior@nestgroup.net";
string toAddress = "alexander.junior@nestgroup.net";
string contentId = "image1";
string path = Server.MapPath(@"Images/welfare.jpg"); // my logo is placed in images folder
MailMessage mailMessage = new MailMessage(fromAddress, toAddress);
mailMessage.Bcc.Add("alexander.junior@nestgroup.net"); // put your id here
mailMessage.Subject = "Welcome new User";

LinkedResource logo = new LinkedResource(path);
logo.ContentId = "companylogo";
// done HTML formatting in the next line to display my logo
AlternateView av1 = AlternateView.CreateAlternateViewFromString("<html><body><img src=cid:companylogo/><br></body></html>" + strMailContent, null, MediaTypeNames.Text.Html);
av1.LinkedResources.Add(logo);

mailMessage.AlternateViews.Add(av1);
mailMessage.IsBodyHtml = true;
SmtpClient mailSender = new SmtpClient("mail.nestgroup.net"); //use this if you are in the development server
mailSender.Send(mailMessage);

Posted 5-Aug-14 19:22pm

Rahul 105

Updated 5-Aug-14 19:37pm

v3

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Gihan Liyanage · Answer 1 · 2014-08-05T20:58:00

If you want to embedded in to body use

C#

try
            {
                // Add image attachment from local disk
                Attachment oAttachment = oMail.AddAttachment( "d:\\test.gif" );

                // Specifies the attachment as an embedded image
                // contentid can be any string.
                string contentID = "test001@host";
                oAttachment.ContentID = contentID;
                oMail.HtmlBody = "<html><body>this is a <img src="\"cid:"<br" mode="hold" />                     + contentID + "\"> embedded image.</body></html>";

                Console.WriteLine("start to send email with embedded image...");
                oSmtp.SendMail(oServer, oMail);
                Console.WriteLine("email was sent successfully!");
            }
            catch (Exception ep)
            {
                Console.WriteLine("failed to send email with the following error:");
                Console.WriteLine(ep.Message);
            }

pradiprenushe · Answer 2 · 2014-08-05T21:10:00

Solution 2

Use full url for image src

C#

AlternateView av1 = AlternateView.CreateAlternateViewFromString("<html><body><img src="http://www.yourdomain.com/images/companylogo.jpg" /><br></br></body></html>" + strMailContent, null, MediaTypeNames.Text.Html);

Posted 5-Aug-14 21:10pm

pradiprenushe