Re: reject_unknown_client_hostname and 450s

2013-07-01 Thread Noel Jones
On 7/1/2013 5:05 PM, LuKreme wrote: > > On 30 Jun 2013, at 06:05 , Wietse Venema wrote: > >> LuKreme: >>> When reject_unknown_client_hostname triggers on an NXDOMAIN it >>> returns a 550 error, which is great. When it triggers because there >>> is no PTR record, it returns a 450 error, which is

Re: reject_unknown_client_hostname and 450s

2013-07-01 Thread LuKreme
On 30 Jun 2013, at 06:05 , Wietse Venema wrote: > LuKreme: >> When reject_unknown_client_hostname triggers on an NXDOMAIN it >> returns a 550 error, which is great. When it triggers because there >> is no PTR record, it returns a 450 error, which is also great? >> except. > > That is incorrect.

Re: reject_unknown_client_hostname and 450s

2013-06-30 Thread Stan Hoeppner
On 6/30/2013 3:12 AM, LuKreme wrote: > When reject_unknown_client_hostname triggers on an NXDOMAIN it returns a 550 > error, which is great. When it triggers because there is no PTR record, it > returns a 450 error, which is also great… except. > > What I see is servers that connect hundreds of

Re: reject_unknown_client_hostname and 450s

2013-06-30 Thread Noel Jones
On 6/30/2013 3:12 AM, LuKreme wrote: > When reject_unknown_client_hostname triggers on an NXDOMAIN it returns a 550 > error, which is great. When it triggers because there is no PTR record, it > returns a 450 error, which is also great… except. What you're seeing is the PTR lookup fails with a t

Re: reject_unknown_client_hostname and 450s

2013-06-30 Thread Wietse Venema
LuKreme: > When reject_unknown_client_hostname triggers on an NXDOMAIN it > returns a 550 error, which is great. When it triggers because there > is no PTR record, it returns a 450 error, which is also great? > except. That is incorrect. The 450 code is for errors where lookup failed (no result in

Re: reject_unknown_client_hostname and 450s

2013-06-30 Thread Ansgar Wiechers
On 2013-06-30 LuKreme wrote: > When reject_unknown_client_hostname triggers on an NXDOMAIN it returns > a 550 error, which is great. When it triggers because there is no PTR > record, it returns a 450 error, which is also great… except. > > What I see is servers that connect hundreds of times, get

reject_unknown_client_hostname and 450s

2013-06-30 Thread LuKreme
When reject_unknown_client_hostname triggers on an NXDOMAIN it returns a 550 error, which is great. When it triggers because there is no PTR record, it returns a 450 error, which is also great… except. What I see is servers that connect hundreds of times, getting 450 errors and ignoring them an