Am Donnerstag, 27. Dezember 2012 schrieb Peter Hessler : > Not sure where you got "greyscanner" from, but you should probably ask > the authors. > > It's from a guy called Bob.
http://www.ualberta.ca/~beck/nycbug06/scripts/greyscanner > > On 2012 Dec 26 (Wed) at 21:31:26 +0100 (+0100), Jan Stary wrote: > :This is spamd and greyscanner on current/macppc. > :Generally, it works very well for me. > : > :Recently, I see greyscanner trapping hosts that try to > :"mail from sender with no MX or A", such as > : > :Dec 26 17:21:13 www greyscanner[31861]: Trapped 87.219.109.249: > :Mailed from sender bernina.co.il with no MX or A > : > :That's a spammer alright, a typical mail from there looks like > :(GREY) 87.219.109.249: <surchargeg...@bernina.co.il <javascript:;>> -> < > xyfstare...@stare.cz <javascript:;>> > :However, there _is_ a MX and A record for bernina.co.il: > : > :$ host -t a bernina.co.il > :bernina.co.il has address 62.90.102.9 > :$ host -t mx bernina.co.il > :bernina.co.il mail is handled by 20 mx5.adcd.co.il. > :bernina.co.il mail is handled by 10 mx4.adcd.co.il. > : > :So there is something wrong. Same way, gmail.com got trapped: > : > :Dec 26 20:54:32 www greyscanner[12163]: Trapped 209.85.215.177: Mailed > :from sender gmail.com with no MX or A > : > :Needless to say, there are MX and A records for gmail.com > :(and there must have been at Dec 26 20:54:32 too). > : > :What could be causing this? DNS resolving works fine on this machine. > :Could it be that for some reason, greyscanner failed to resolve > :at that precise moment? Can the "$DNS_SOCK_MAX = 50;" setting > :have something to do with it? > : > :Is anyone else seeing this? > : > : Jan > : > > -- > In Corning, Iowa, it's a misdemeanor for a man to ask his wife to ride > in any motor vehicle.
