October 2, 2023 1:42 PM, "Wietse Venema via Postfix-users" <postfix-users@postfix.org> wrote:
> patpro--- via Postfix-users: >> OK, this is where I was wrong. I thought postscreen would cache >> the result of the DNS queries for at least postscreen_dnsbl_min_ttl. >> Most dnsbl have a crazy short TTL, I was hopping to get some cache >> here without having to install a tool capable of caching DNS query >> results with TTL override? > > Postfix assumes that it will be using a caching resolver. Are you > using a non-caching resolver? I do use a caching resolver in fact, but those DNBL providers often use very short TTLs. > postscreen_dnsbl_min_ttl specifies how long POSTFIX will remeber > the result of a DNBL/WL test - the TEST RESULT, not the DNS response. OK. thanks again for making this clearer! Pat _______________________________________________ Postfix-users mailing list -- postfix-users@postfix.org To unsubscribe send an email to postfix-users-le...@postfix.org
