Ray Davis: > > On 18. Sep 2014, at 19:01 Uhr, Wietse Venema <wie...@porcupine.org> wrote: > > > Ray Davis: > >> A customer wants a mail relay for testing to SAP applications. It should > >> take all relayed email and save it to a local mailbox (or forward it to > >> another email address) - but it should not actually send the emails > >> further to the recipient. > >> > >> I know that sender_bcc_map can take car of saving the emails, but how can > >> I keep the server from sending the mail further? I need an > >> all_emails_from_sender_go_to_dev_null option? ;) > >> > > > > REPLACE the recipient, instead of ADDING one. > > Except the customer wants to see the email unmodified from their > SAP software. But now that I see there is a transport discard:silently, > then I can just set up a private postfix server with sender_bcc_map > and discard:silently.
Perhaps you can use a REDIRECT action in a check_sender_access map? That will override all envelope recipients, and has no effect on existing message headers. smtpd_sender_restrictions = check_sender_access maptype:mapfile Wietse