Emails from Mac are having fonts changed randomly. One user is complaining that everything seems okay on his Mac, however, he noticed that when people reply to his emails, his [art has different font and size to the one he used to send that email. We did some testing and it is definitely his machine. He is using Outlook 2011 for Mac and Mail. He has Mac OS X version 10.10.5. We are using Office 366 and he has Exchange account added to his email programs.
I was thinking about disabling Rich Text options on the email server and only leaving Plain Text and HTML.
How can I make sure that his emails look all the same?