In my organization some of the employees are located elsewhere from headquarters and therefore they are using Outlook Web Access (OWA) to receive and send E-mails.
The problem lies in the format in how E-mails are sending and forwarded. When receiving an E-mail which has HTML context (e.g. tables) it shows it right enough but when the same E-mail is forwarded it completely disturbs the layout and it seems like it can only send in pure text.
Is there any way I can enable HTML to be used for sending and forwarding E-mails through OWA, either via the settings in OWA or our Exchange server?
There's a dropdown box when you create a new message through OWA - the two options are "HTML" and "plain text". If that box isn't there, there may be a problem with your Client Access server, or someone may have managed to remove it (though I'm not aware of any way to do this).
The dropdown box, where you can choose "html" or "plain text" is shown when you use firefox. You have to use Internet Explorer to see all the options.
In case if you are using IE but still nothing works, Please try below option as it worked for me:
As pointed out by Kara Marfia above, you can choose what message type to create when you click on new message.
If you want to make the switch permanent, like I did, then this is likely more useful:
Select Settings from the left hand window pane and click on the Mail tab.
Scroll down to Message format section, you can now set message format to HTML or Plain text from the drop down list.
Taken near verbatim from https://www.ucl.ac.uk/isd/how-to/email-calendar/html-plain-text-messages-owa