Question

Is the MailDefinition Class only for use with ASP? It seems to have everything I need, but apparently I need to add the SMTP server info in a Web.Config file. I want to use this class in a WinForms app. Is this possible?

Thanks

Answer 1

Sure, you should be able to use it from a WinForms app. You need to pass the SMTP host name to the System.Net.Mail.SmtpClient constructor. Something like this:

using System.Net.Mail;
using System.Web.UI.WebControls;

// namespace etc

private void SendEmail()
{
    string to = "[e-mail],[e-mail]";

    MailDefinition mailDefinition = new MailDefinition();
    mailDefinition.IsBodyHtml = false;

    string host = "smtpserver";  // Your SMTP server name.
    string from = "[e-mail]";
    int port = -1;               // Your SMTP port number. Defaults to 25.

    mailDefinition.From = from;
    mailDefinition.Subject = "Boring email";
    mailDefinition.CC = "[e-mail],[e-mail]";

    List<System.Net.Mail.Attachment> mailAttachments = new List<System.Net.Mail.Attachment>();
    // Add any attachments here

    using (MailMessage mailMessage = mailDefinition.CreateMailMessage(to, null, "Email body", new System.Web.UI.Control()))
    {
        SmtpClient smtpClient = new SmtpClient(host);
        if (port != -1)
        {
            smtpClient.Port = port;
        }
        foreach (System.Net.Mail.Attachment mailAttachment in mailAttachments)
        {
            mailMessage.Attachments.Add(mailAttachment);
        }
        smtpClient.Send(mailMessage);
    }
}