Recently, I have found an issue with RichTextBox. I create a RadDocument with an inserted image on it and then convert in into html using Telerik.Windows.Documents.FormatProviders.Html.HtmlFormatProvider. I can see the image if I open the file with any browser. However, if I email that html document as a body of email then my gmail doesn't show it as image. It shows it as text like <image and etc>. I believe it happens because of security issues. Has anybody ever had the same problem? Maybe there are some settings for gmail to show the image?

Hi Lee,

RadRichTextBox's HtmlFormatProvider embeds images when exporting them. Many e-mail clients, however, restrict the showing of embedded images for security purposes. 

In this regard we can suggest to export the images separately and attach them to the e-mail, for example. In order to export the images separately you can take advantage of HtmlFormatProvider's ExportSettings and more precisely the ImageExporting event.

I hope this helps!

Regards,
Petya
Telerik