C# MailTo with Attachment?

Question

Currently I am using the below method to open the users outlook email account and populate an email with the relevant content for sending:

public void SendSupportEmail(string emailAddress, string subject, string body) {    Process.Start("mailto:" + emailAddress + "?subject=" + subject + "&body="                  + body); } 

I want to however, be able to populate the email with an attached file.

something like:

public void SendSupportEmail(string emailAddress, string subject, string body) {    Process.Start("mailto:" + emailAddress + "?subject=" + subject + "&body="        + body + "&Attach="       + @"C:\Documents and Settings\Administrator\Desktop\stuff.txt"); } 

However this does not seem to work. Does anyone know of a way which will allow this to work!?

Help greatly appreciate.

Regards.

Answer 1

If you want to access the default email client then you can use MAPI32.dll (works on Windows OS only). Take a look at the following wrapper:

http://www.codeproject.com/KB/IP/SendFileToNET.aspx

Code looks like this:

MAPI mapi = new MAPI(); mapi.AddAttachment("c:\\temp\\file1.txt"); mapi.AddAttachment("c:\\temp\\file2.txt"); mapi.AddRecipientTo("[email protected]"); mapi.AddRecipientTo("[email protected]"); mapi.SendMailPopup("testing", "body text");  // Or if you want try and do a direct send without displaying the mail dialog // mapi.SendMailDirect("testing", "body text"); 

Answer 2

mailto: doesn't officially support attachments. I've heard Outlook 2003 will work with this syntax:

<a href='mailto:[email protected]?Subject=SubjTxt&Body=Bod_Txt&Attachment=""C:\file.txt"" '> 

A better way to handle this is to send the mail on the server using System.Net.Mail.Attachment.

    public static void CreateMessageWithAttachment(string server)     {         // Specify the file to be attached and sent.         // This example assumes that a file named Data.xls exists in the         // current working directory.         string file = "data.xls";         // Create a message and set up the recipients.         MailMessage message = new MailMessage(            "[email protected]",            "[email protected]",            "Quarterly data report.",            "See the attached spreadsheet.");          // Create  the file attachment for this e-mail message.         Attachment data = new Attachment(file, MediaTypeNames.Application.Octet);         // Add time stamp information for the file.         ContentDisposition disposition = data.ContentDisposition;         disposition.CreationDate = System.IO.File.GetCreationTime(file);         disposition.ModificationDate = System.IO.File.GetLastWriteTime(file);         disposition.ReadDate = System.IO.File.GetLastAccessTime(file);         // Add the file attachment to this e-mail message.         message.Attachments.Add(data);          //Send the message.         SmtpClient client = new SmtpClient(server);         // Add credentials if the SMTP server requires them.         client.Credentials = CredentialCache.DefaultNetworkCredentials;          try {           client.Send(message);         }         catch (Exception ex) {           Console.WriteLine("Exception caught in CreateMessageWithAttachment(): {0}",                  ex.ToString() );                       }         data.Dispose();     }