I have a C API application that creates email messages in Notes. For emails with HTML, I call a routine in NIHTML.DLL called “ImportHtmlTextFile” which converts it to Notes Rich Text. This email looks fine when viewed with the Notes client. However, when using something like Thunderbird to look at the message via the Domino IMAP server, the message is blank. Any ideas what could cause that? Maybe some special property that the IMAP server requires that my code is not creating?