One thing to consider about mailbox.org is that if you don’t use your own custom domain and keep an @mailbox.org address (which afaik is considered a best practice for privacy because it lets you “hide” in the crowd), if you decide to move on later they will make your old address available to others later.
One thing to consider about mailbox.org is that if you don’t use your own custom domain and keep an @mailbox.org address (which afaik is considered a best practice for privacy because it lets you “hide” in the crowd), if you decide to move on later they will make your old address available to others later.