Html exported from RadRichTextBox will be shown in Outlook with some formatting issues related to lists. The text in a paragraph will be shown with the formatting of its bullet. The reason is that the content is exported to HTML as a styled list level which Outlook does not understand. The same applies to MS Word as well. This can also lead to formatting issues when the document is later imported in RichTextBox. You can check the attached screenshot for reference. Workaround: Change the styles to export as inline properties: htmlProvider.ExportSettings.StylesExportMode = StylesExportMode.Inline;