http://torbox5emaktsqbibhad2vxjzn5z7znzmvnfhj4nnkw3ks2jmx3agsad.onion/faq
How can we interchange email? You have to add to your MTA a rule that
all the email which destination is TorBox must be forwarded to torbox5emaktsqbibhad2vxjzn5z7znzmvnfhj4nnkw3ks2jmx3agsad.onion and you must contact us (
[email protected]) to add your domain in our MTA rules in order to correctly forward
all the messages sent from TorBox to your domain.