Spam Filter ISP Support Forum

  New Posts New Posts RSS Feed - DNS requests
  FAQ FAQ  Forum Search   Register Register  Login Login

DNS requests

 Post Reply Post Reply
Author
mikek View Drop Down
Senior Member
Senior Member
Avatar

Joined: 22 February 2005
Location: Switzerland
Status: Offline
Points: 133
Post Options Post Options   Thanks (0) Thanks(0)   Quote mikek Quote  Post ReplyReply Direct Link To This Post Topic: DNS requests
    Posted: 01 September 2006 at 9:33am
Does SF cache the DNS replies it gets? If not, would it be advisable to install a (cache-only) dns server on the same machine as SF to cut down on network traffic?
Back to Top
LogSat View Drop Down
Admin Group
Admin Group
Avatar

Joined: 25 January 2005
Location: United States
Status: Offline
Points: 4104
Post Options Post Options   Thanks (0) Thanks(0)   Quote LogSat Quote  Post ReplyReply Direct Link To This Post Posted: 01 September 2006 at 10:03am
SpamFilter does not cache DNS replies. However...

If an IP address is sending spam, after a few emails get caught within a short period of time, the IP will be added to a temporary local IP blacklist cache (if this filter is enabled), and any further connections will be immediately rejected.
Roberto Franceschetti

LogSat Software

Spam Filter ISP
Back to Top
mikek View Drop Down
Senior Member
Senior Member
Avatar

Joined: 22 February 2005
Location: Switzerland
Status: Offline
Points: 133
Post Options Post Options   Thanks (0) Thanks(0)   Quote mikek Quote  Post ReplyReply Direct Link To This Post Posted: 01 September 2006 at 10:40am
Yes I'm aware of that function...

So you would say installing a cache-only dns server on the machine would help?

A ham message goes through a lot of tests - and quite a few of them are DNS based, so I would expect a cut down of external DNS requests...

What do you think? Should I try?
Back to Top
 Post Reply Post Reply
  Share Topic   

Forum Jump Forum Permissions View Drop Down



This page was generated in 0.164 seconds.