How to make signature that will look the same on different email-clients? We use outlook 2010, 2013 and 2016 and mozzila thunderbird. I have tested with thunderbird and Outlook 2016 and have big problems, from display of color to different looking text. What I found is when I send a colored line (orange) the other email client changes it to gray + when mail is sent from thunderbird formating is gone.. So how to proceed here? I made signature in word 2016 then copy it to outlook and for thunderbird I tried to open it as .htm file or copy paste the signature from outlook and then inside new mail use save, file and then as html and then choose it as signature.
So any options what should I use do? I even tryed to use signature as picture but is not a preferable way.
My final goal is to have a signature that will work with all email clients and will be easilly editable for every employee.