> What happens, when the machine acts as a gateway and forwards
> virtually all the mails to other services, i.e. Exchange or external
> mail? We get mails from various internal machines, and then process
> them accordingly. We don't have any local address for the machine.
Nothing needs to be any different due to that; ratelimits are applied
in the SMTP ACLs, before mail is further processed. Our ratelimits
are applied on our mail submission machine, which is purely a gateway
machine.
- cks