The system "SafetyAnswer" that mail address anonymity can protect oneself and partner's security tightly.

The PTA activity that an address exchange with many people is necessary was a trigger, and idea of "SafetyAnswer" was born.Existing anonymization tools are only used to fake your own address.
"SafetyAnswer" is used to take a contact each other through 1 of "Known address", and the address is made by sender and recipient anonymous, and it's possible to maintain mutualy anonymity.
When operating in an organization such as a company or government office, the customer's mail address is not brought into the organization in the first place, so it is possible to eliminate concerns about information leakage.