I had a business owner confront me over this (but the Gmail version where the format is name.service@gmail.com). Basically I was using a taxi service to get a o

I had a business owner confront me over this (but the Gmail version where the format is name.service@gmail.com). Basically I was using a taxi service to get a one-time ride to the airport, they required an email address, so I did the usual name.tonystaxiservice@gmail.com (or whatever it was). The business owner contacted me over the telephone to 'confirm' my email address, seemed to understand what the purpose of the dot was because they expressed repeatedly that they're not a spammer, they won't sell my email, etc. and ultimately removed the dot from my email in their records because that's where I found an emailed receipt. This was all before Apple's feature came to be. I just hope this kind of email 'protection' becomes more mainstream.