I noticed the other day that I couldn’t insert a link in a message while replying to an email in Office365? I found that frustrating; why would someone want to do this to me? This happens when someone sends you a message in the plain text format. If you would like to change this so you can be more like me and add links or make text bold click reply to the message and then select the three dots in the menu bar above the address bar. This will give you more options and one of those options is to switch to HTML. By selecting HTML you are now able to reply to your message and insert a link or make some other changes that you may not have had the ability to do before.