On 10 January 2017 at 14:41, Wietse Venema <wie...@porcupine.org> wrote: > Dominic Raferd: >> # Example 1: response from gmail at end of smtp transmission is >> checked using dns_filter_lookup - as intended, and not found - as > > $ postconf dns_filter_lookup > postconf: warning: dns_filter_lookup: unknown parameter > > No surprise, then, that nothing is matched. >
(reposting to postfix-users...) Quite so, but finding a match once the test occurs is not the issue here. My apologies for confusion caused by my typo putting 'dns' in handwritten comment line when of course I meant 'dsn'. I am using smtp_delivery_status_filter=pcre:/etc/postfix/smtp_dsn_filter, and this file does exist and is called to test the response after a successful delivery - my first example is the simple control case. My puzzle is in the second example where no test is performed upon the final response code.
