Re: [spamdyke-users] DKIM etc.

2008-10-09 Thread slamp slamp
On Wed, Oct 8, 2008 at 10:33 PM, Sam Clippinger [EMAIL PROTECTED] wrote: Well, not necessarily. At the moment, spamdyke is only vulnerable to a very small part of the DNS spoofing attack. Most of the danger Dan Kaminsky discovered comes from caching -- a vulnerable host could cache incorrect

Re: [spamdyke-users] DKIM etc.

2008-10-08 Thread slamp slamp
On Fri, Oct 3, 2008 at 5:52 PM, Eric Shubert [EMAIL PROTECTED] wrote: Felix Buenemann wrote: Hi, I agree with Arthur and Bgs in that SPF is a smarter thing to check, because it can be done without checking headers and currently has a much wider disribution base. IMHO the only way to

Re: [spamdyke-users] DKIM etc.

2008-10-08 Thread Sam Clippinger
Well, not necessarily. At the moment, spamdyke is only vulnerable to a very small part of the DNS spoofing attack. Most of the danger Dan Kaminsky discovered comes from caching -- a vulnerable host could cache incorrect DNS data sent by the attacker. spamdyke doesn't cache DNS information,

Re: [spamdyke-users] DKIM etc.

2008-10-03 Thread Eric Shubert
Felix Buenemann wrote: Hi, I agree with Arthur and Bgs in that SPF is a smarter thing to check, because it can be done without checking headers and currently has a much wider disribution base. IMHO the only way to properly reject DKIM failed mail is at the end of the DATA command,

Re: [spamdyke-users] DKIM etc.

2008-09-24 Thread Arthur Girardi
Hello, Sorry for butting in, but I'd like to give some of my thoughs too. I don't think Sam should invest time in an implementation of DKIM now, its just not the right time. As Eric said, its not yet a standard, so many mail administrators won't implement it for lack of support. Also,

Re: [spamdyke-users] DKIM etc.

2008-09-24 Thread Arthur Girardi
Hi. I disagree about waiting for a certain (or uncertain) percentage of servers in a survey before implementing it though. This isn't a feature about convenience or annoyance, it's a feature that will probably have a big positive impact on some peoples lives. I think the fact that PayPal and

Re: [spamdyke-users] DKIM etc.

2008-09-24 Thread Sam Clippinger
I did some Googling today and found this: http://www.phishtank.com/stats/2008/07/ Apparently, in July of this year, phishtank.com verified more phishing scams targeting PayPal than the rest of the top 10 targets combined. That pretty impressive, although I must take it with a grain of salt

Re: [spamdyke-users] DKIM etc.

2008-09-23 Thread Eric Shubert
Eric Shubert wrote: Sam, I see in the TODO file for 4.0 that adding SPF/CSV/Sender ID/DomainKeys/DKIM checking is ranked as a todo-later item. I don't care so much about CSV/SenderID/DomainKeys, but I'd like to see the others implemented sooner than later. In particular, DKIM signatures