Other vulnerabilities inherent in HTML e-mail include the ability to run Visual Basic scripts, ActiveX controls, and Macromedia flash, all of which can execute unauthorized and unsafe code.

Create your own HTML e-mail newsletter Download a newsletter template and send it to a subset of your Outlook or Thunderbird contacts--without the messages getting caught in spam filters.

The Twitter protest again Microsoft Outlook is losing steam, but the question remains: Is HTML e-mail dangerous or is Microsoft using security as a reason not to comply with Web standards?

Open the e-mail, and the message window becomes, in effect, a mini-browser, running the HTML code that’s part of the message. Browsers don’t run just HTML code.

Yahoo used its recent "Hack Day" to springboard its opening of substantial chunks of code to software developers, highlighted by the application programming interface of Yahoo's widely-used Web e-mail ...

A hole in Internet Explorer can cause the browser to automatically open HTML e-mail attachments that could be used by an attacker to execute malicious code.

By attaching hidden Javascript code to an HTML e-mail, snoopers can ensure that a copy of the e-mail gets forwarded back to them every time it's replied to or forwarded along.

Select "E-mail Security" in the left pane. Clear the box next to "Read All Standard Mail in Plain Text" to make Outlook display messages in HTML by default.

Important security updates have been released for the e-mail client Thunderbird and the web browser Firefox. Attackers can attack systems on which Firefox or Thunderbird is installed. The iOS version ...