However, if you send from Office 365 to Outlook 2016, you will notice the problem come up.
For example, if you send from Outlook for Mac to Outlook 2016 in Windows, the problem likely wont appear. This also depends on the platform you are sending the email from. The versions of Outlook it affects is 2007, 2010, 20. This is an issue that has been plaguing Outlook for quite some time, and it can be a very difficult problem to fix, unless you know where to look. Always have another font as the last one, otherwise Outlook will convert it to Times New Roman. Also, ensure that sans-serif is not the last font in the font-family or any other font property. Email Signature Font Changing to Times New Roman When Sent to Outlook Solution: Ensure you put a Non-breaking space ( ) in front of the element that is getting changed in Outlook.
