On 1/13/2010 12:32 PM, RaSca wrote: > Il giorno Mer 13 Gen 2010 18:09:35 CET, Steve ha scritto: > [...] >> I would suggest you to use proxy maps to lower the amount of >> connections to the MySQL backend. And on the above >> smtpd_recipient_restrictions I would suggest to push >> reject_unlisted_recipient above all RBL checks since there is no >> benefit in checking RBLs if you are anyway going to reject them later >> (if the recipient is not managed on your system). >> I as well would not use zen.spamhaus.org (without a subscription) if >> you have a high mail volume. > > Thank you Steve, > I made as you suggested and now the MySQL threads still remains low > even if reject_unlisted_recipient is on the top of the list. > I also removed smahaus.org from the rbl check, I'm going to find out > if it's conveninet subscribing to the service. >
In addition, list.dsbl.org is dead and gone for some time now. You are just adding a DNS lookup that will never return anything valuable.