Frequently Adobe references PC products like "Outlook". But what about Apple products, will it work just as well?
Adobe Send is an online service so you can use it on any browser on Mac as well.
In the FAQ it references Outlook because apart from the online service there's also a plugin that gets integrated with your Outlook email account which enables you to send the mails through Adobe Send from Outlook instead of logging on to the web service on browser and send files.
Unfortunately this plugin is not available for Mac.
You can see what operating systems and browsers our services are compatible with here: System Requirements | Adobe Acrobat Pro and Online Services