On 07 Nov 2013, at 12:19, Simon Loewenthal <si...@klunky.co.uk> wrote:
> I have a postfix instance on Debian 6 that has never performed DNS lookups > with version number 2.7.1-1+squeeze1. > > The mail.log lists all connections like > > Nov 6 17:40:54 lo postfix/smtpd[10283]: 4AD4292: client=unknown[82.2.1.3], > sasl_method=PLAIN, sasl_username=exam...@example.com > Nov 6 17:40:54 lo postfix/smtpd[10283]: disconnect from unknown[82.2.1.3] > Real IP address obfuscated. > > DNS worked and quickly performs name resolution for all other programmes > including SpamAssassin. Results returned for SpamAssassin's RBL lookups > happen quite quickly for this lower end server. I cannot see performance > problems with Power DNS Recursor. [snip] > I'd be very grateful if any one would be able to kindly shed some light on > this for me. Please. Postfix should work just fine in its default configuration, even on Debian. Have you made any changes to your 'master.cf'? Post that, please. Mvg, Joni
