Re: A new paradigm for DNS based lists

2010-12-30 Thread Benny Pedersen
On ons 29 dec 2010 18:33:25 CET, Marc Perkel wrote I would skip test if they have SPF because spammers often set their SPF correctly. stop this throlling, spammers dont add whitelist_from_spf into spamassassin -- xpoint http://www.unicom.com/pw/reply-to-harmful.html

Re: A new paradigm for DNS based lists

2010-12-30 Thread Benny Pedersen
On ons 29 dec 2010 18:24:00 CET, Matt wrote So any email from hotmail.com, gmail.com, yahoo.com, etc. if there SPF or DKIM passes skip any further DNS tests? blind testing if sender is one of them, dont do more mta testing ? if wanting to reduce load on sa then whitelist from spf or dkim, and

Re: A new paradigm for DNS based lists

2010-12-29 Thread David F. Skoll
On Wed, 29 Dec 2010 11:50:56 -0800 Marc Perkel wrote: > My idea doesn't preclude you from having a "bad yahoo" list and > adding points. I'm just saying that when it comes to checking other > blacklists to see if any yahoo server is listed it's a waste of > resources. If it's a yahoo server of an

Re: A new paradigm for DNS based lists

2010-12-29 Thread Yet Another Ninja
On 2010-12-29 20:50, Marc Perkel wrote: On 12/29/2010 11:10 AM, David F. Skoll wrote: On Wed, 29 Dec 2010 09:33:25 -0800 Marc Perkel wrote: Yes - there's no point in doing DNS blacklist lookups on yahoo, hotmail, and gmail as well as thousands of other mixed source providers. I disagree. I

Re: A new paradigm for DNS based lists

2010-12-29 Thread Marc Perkel
On 12/29/2010 11:10 AM, David F. Skoll wrote: On Wed, 29 Dec 2010 09:33:25 -0800 Marc Perkel wrote: Yes - there's no point in doing DNS blacklist lookups on yahoo, hotmail, and gmail as well as thousands of other mixed source providers. I disagree. I have a strong feeling that some of thos

Re: A new paradigm for DNS based lists

2010-12-29 Thread David F. Skoll
On Wed, 29 Dec 2010 09:33:25 -0800 Marc Perkel wrote: > Yes - there's no point in doing DNS blacklist lookups on yahoo, > hotmail, and gmail as well as thousands of other mixed source > providers. I disagree. I have a strong feeling that some of those providers route less-trustworthy mail throu

Re: A new paradigm for DNS based lists

2010-12-29 Thread Daniel McDonald
On 12/29/10 11:33 AM, "Marc Perkel" wrote: > > > On 12/29/2010 9:24 AM, Matt wrote: >> So any email from hotmail.com, gmail.com, yahoo.com, etc. if there SPF >> or DKIM passes skip any further DNS tests? >> >> > > Yes - there's no point in doing DNS blacklist lookups on yahoo, hotmail, > an

Re: A new paradigm for DNS based lists

2010-12-29 Thread Marc Perkel
On 12/29/2010 9:24 AM, Matt wrote: So any email from hotmail.com, gmail.com, yahoo.com, etc. if there SPF or DKIM passes skip any further DNS tests? Yes - there's no point in doing DNS blacklist lookups on yahoo, hotmail, and gmail as well as thousands of other mixed source providers. The

Re: A new paradigm for DNS based lists

2010-12-29 Thread Matt
Could a similiar thing be accomplished with a simple list of free email provider etc. domains and checking there SPF or DKIM records and if they pass bypassing any other DNS lists? So any email from hotmail.com, gmail.com, yahoo.com, etc. if there SPF or DKIM passes skip any further DNS tests?