Outlook电子邮件将不会显示在Web应用程序中

Question

I have a web application with some functionality to allow a user to send an email using Microsoft.Office.Interop.Outlook.Application. I want to display the email to allow the user to add any text they may want before sending. It works as expected in localhost however in production it fails to display the email. My code is as follows:

OutlookApp outlookApp = new OutlookApp();
MailItem mailItem = outlookApp.CreateItem(OlItemType.olMailItem);

mailItem.To = address;
mailItem.Subject = subject;
mailItem.HTMLBody = body;

mailItem.Importance = OlImportance.olImportanceNormal;

mailItem.Display(false);

Outlook opens just fine when I use a Response.Redirect instead of the above.

Response.Redirect("mailto:" + email + "?subject=" + subject + "&body=" + body);

Any ideas/suggestions?

Answer 1

Create an EML (MIME) message with attachments etc. on the server and let the user download it. Outlook on the client side will be happy to open it. Don't forget to add the X-Unsent:1 MIME header to make sure the user can actually send it.