OL2000: (CW) Rich Text Signed Messages Are Always Sent As HTML

ID: Q217390

The information in this article applies to:

Microsoft Outlook 2000

NOTE: These procedures only apply if you have installed Outlook with the Corporate or Workgroup option. This option allows you to use Messaging Application Programming Interface (MAPI) services. To determine your installation type, on the Help Menu click About Microsoft Outlook. In About Microsoft Outlook you should see "Corporate or Workgroup" if you have the Corporate or Workgroup installation.

SYMPTOMS

When you send a clear signed S/MIME message in Microsoft Outlook Rich Text format, your recipients receive the message in HTML format.

CAUSE

This is by design to ensure compatibility with e-mail clients that cannot read TNEF mesages.

MORE INFORMATION

HTML (Hyper Text Markup Language) is an Internet-standard way of representing formatting such as bold text or colored fonts. All Web pages use HTML, as do many popular e-mail clients.

TNEF (Transport Neutral Encapsulation Format) is a Microsoft proprietary method for encoding RTF messages that are sent across the Internet. A TNEF encoded message contains a plain text version of the message and an attachment that contains the RTF version of the message along with any OLE objects that were sent with the message. Some e-mail clients do not understand TNEF encoding, and so it should only be used if you are certain the message will be received by someone using Windows Messaging, Microsoft Exchange Client, or Microsoft Outlook.

REFERENCES

For additional information about TNEF, please see the following article in the Microsoft Knowledge Base:

Q197635 OL2000: (IMO) TNEF Information Not Retained Sending HTML E-mail

Additional query words: OL2K

Keywords : kbdta
Version : WINDOWS:2000
Platform : WINDOWS
Issue type : kbprb