In HTML messages, however, attachments appear underneath the subject header of a message. Attachments in an RTF message appear as icons within the message body. With RTF, you can format text with bullets, can align text, and can use other options, including adding linked objects. Outlook also automatically formats messages that contain voting buttons, and converts tasks and meeting requests to iCalendar format. In fact, when you send an RTF message to someone outside your organization, Outlook automatically converts it to HTML, so the message keeps its formatting and its attachments. You can use RTF when you send messages inside an organization that uses Microsoft Exchange, but we recommend that you use the HTML format. Microsoft Exchange Client versions 4.0 and 5.0 Rich Text Format (RTF) is a Microsoft format that’s supported only by these email applications: You need to open your reply or forward in a new window by clicking. Mind you, this option is unavailable if you are composing your reply in the message preview pane. When you reply to or forward a message, you can go to Format Text on the Outlook’s ribbon and click HTML. In this sense, use of RTF in encrypted messages is not recommended and it will be prone to face conversion issues. First, there is always the option to switch the email format manually. RTF is a legacy format and we do not plan to bring improvements to it. Important: HTML format is the current default compose format in Outlook.

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