Am 05.05.2012 02:48, schrieb Wietse Venema: > Florin Andrei: >> I've a Linux machine which is used as a final destination for test >> emails. Some local inboxes are created, local delivery via Dovecot to IMAP. >> >> I want this machine to never send out any email whatsoever. Never relay. >> Accept inbound messages, deliver locally to IMAP - all that is fine. But >> no message should ever leave this box, for no reason, even if it's a >> notification for delivery error. > > Turn off the SMTP client in master.cf
i did it with the following options on begin "main.cf" while my testmachines are using LMTP transports to local domains this way you can set sender/rcpt dependent transports to allow relay in special cases even combined with smtp_sasl_password_maps for relay as example testmails to my gmail account which needs authentication default_transport = error:5.1.2 mail to remote domains not permitted local_transport = error:5.1.2 local transport not permitted relay_transport = error:5.1.2 relay transport not permitted virtual_transport = error:5.1.2 virtual transport not permitted
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