Creating an Outlook Message (MSG) File in Aspose.Email
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To use Office Automation, Microsoft Outlook must be installed on the machine that the code runs on. A reference to Outlook.interop.dll is also required.
VSTO
// Creates a new Outlook Application instance
Outlook.Application objOutlook = new Outlook.Application();
// Creating a new Outlook message from the Outlook Application instance
Outlook.MailItem msgInterop = (Outlook.MailItem)(objOutlook.CreateItem(Outlook.OlItemType.olMailItem));
// Set recipient information
msgInterop.To = "to@domain.com";
msgInterop.CC = "cc@domain.com";
// Set the message subject
msgInterop.Subject = "Subject";
// Set some HTML text in the HTML body
msgInterop.HTMLBody = "<h3>HTML Heading 3</h3> <u>This is underlined text</u>";
// Save the MSG file in local disk
string strMsg = "TestInterop.msg";
msgInterop.SaveAs(strMsg, Outlook.OlSaveAsType.olMSG);
Aspose.Email
The samples below use Aspose.Email to create the Outlook MSG file. It’s written in pure .NET and does not use COM Interop. Outlook installation is not required for creating the msg file this way.
// Create an instance of the Aspose.Email.MailMessage class
MailMessage msg = new MailMessage();
// Set recipients information
msg.To = "to@domain.com";
msg.CC = "cc@domain.com";
// Set the subject
msg.Subject = "Subject";
// Set HTML body
msg.HtmlBody = "<h3>HTML Heading 3</h3> <u>This is underlined text</u>";
// Add an attachment
msg.Attachments.Add(new Attachment("image.bmp"));
// Save it in local disk
string strMsg = "TestAspose.msg";
msg.Save(strMsg, MessageFormat.Msg);