Forwarding a letter without indicating to whom it was intended?

Question

gmail

Is it possible to forward a letter without specifying to whom it was intended.
I tried to create an intermediate box, so that through it to do the transfer.
[email protected] => [email protected] => [email protected]
But the recipient field is displayed. :with

Answer 1

formail from the procmail package can change the message headers as you like, but this is for the case if the mail server is your own, and not a public one