The Format Painter
I'd like to dedicate my Outlook for Mac - buisness votes to this feature also detailed here https://outlook.uservoice.com/forums/293343-outlook-for-mac/suggestions/14894964-format-painter
As the support page FAQ says, it is not yet available. https://support.office.com/en-gb/article/Format-email-messages-in-Outlook-2016-for-Mac-cb35806b-4174-41d2-9cba-b6b624d988b3?ui=en-US&rs=en-GB&ad=GB
Having just transitioned to mac from windows I think this is the thing a actually miss most. So many valuable minutes wasted trying to match fonts.
This feature is available since version 15.36.
I'm right there with you...time waster to have to match fonts on long email chains. I miss my format painter!! :)