Recently a user was complaining about the formatting of emails and also not being able to forward attachements.

Checking the messages , when opening the email it converted it to Plain Text which stripped all the formatting and briefly showed the message

Security Policy Restricts the Use of HTML Email

Checking through the users settings on the phone didn’t suggest it was an Android setting , and re-adding the email still had the issues

There is actually an Active Sync policy that needs enabling for this to stop showing and attachments sending per : http://technet.microsoft.com/en-us/library/bb123994.aspx which is

Allow HTML-formatted e-mail

This can also be enabled in MDM ( Mobile Device Management ) software such as Mobileiron, AirWatch or Kony