Both of the services have the option to delete all forwarded messages.
This is simply the best first step in order to be able to review what accounts still work with the old addresses (via inbox rules) and slowly change them.
I use addy.io for mail aliasing already, but that is not really related to gaining independence from those companies.
Your data goes through them. Some scanning could have already been done, and data has been sent. Sure it’s better than nothing, but it’s not better than fully switching
Both of the services have the option to delete all forwarded messages. This is simply the best first step in order to be able to review what accounts still work with the old addresses (via inbox rules) and slowly change them. I use addy.io for mail aliasing already, but that is not really related to gaining independence from those companies.
Your data goes through them. Some scanning could have already been done, and data has been sent. Sure it’s better than nothing, but it’s not better than fully switching