A forum I belong to requires that messages be sent in plain text - with no encoding or attachments.  I have the font set to courier new, have no attachments and have typed URL's in so that they are not active links.  I'm still told that forum administrator that my message was sent:

"in a non-plain-text format.  The most likely cause is that your mail program appended an encoded (HTML - web page formatting) version of your message."

How can I send a message from Outlook.com using a plain text format only?
If I reply to a plain text message and then from the Draft menu select HTML Format it defaults to using Consolas 14pt font instead of the default Calibri 14pt which is set in the Outlook Preferences>Fonts>Default font for composing.

When I create a new message it defaults to using Calibri 14pt but not when I change plain text message into an HTML message. Anyone else experiencing this or know what I might be doing wrong?

Thanks
THe option to reply to plain text messages whilst quoting the original message prefixed by is missing in Outlook 2011? IS there a backdoor way to get this functionality back? As a security professional, I never ever use HTML because of the risks on of such messages. Now it is a colossal pain in the **** to use Outlook because it is difficult to reply in line with the current configuration. Does anyone know of a way to restore the previous behaviour or a third party add on?