way is because they could not close security holes in their operating system, and still do it this way even though everyone else has moved on (they are at least 10 years behind). Heed the advice and use a proper bulk mail tool like mailchimp, which has a free account that can handle most casual needs. Hi Wolf. I have just checked in Outlook 2007 (which is fairly similar to 2010) and the process is almost identical to the one I have described, except Microsoft like to do things with a 'ribbon' now! So, create a new email, and click in the body of the email. Click on the INSERT menu and on the left should be a ribbon item called 'Attach File'. Click on that. Noe browse to where your HTML file is, select it and then where the button states INSERT, click on the small arrow to the right of that and select INSERT AS TEXT. That should insert your HTML into the body of the email. And I had a thought about the comments regarding sending bulk emails through Outlook. I don't believe anyone has suggested that this was the main purpose of sending an HTML email via Outlook. It was just a question about how to send an HTML email in Outlook, which is fairly innocent. Sending bulk emails via Outlook (or any other email client) is not the right thing to do so use a mailing list manager for that. But sending HTML emails using