On 2009-09-15 Dan Slay wrote: > I'm looking for some information on preventing the sending of > backscatter from a Postfix gateway mail server. > > The server itself does not and will not hold a recipient list,
Then you can't avoid sending backscatter. Period. RFC 2821 clearly states: | If an SMTP server has accepted the task of relaying the mail and | later finds that the destination is incorrect or that the mail | cannot be delivered for some other reason, then it MUST construct | an "undeliverable mail" notification message and send it to the | originator of the undeliverable mail > therefore I don't know what the best way forward would be? Maintain a recipient list. Regards Ansgar Wiechers -- "Abstractions save us time working, but they don't save us time learning." --Joel Spolsky