Re: possible bug in Mail::DKIM when keysize is under 1024 bits

2015-01-12 Thread Franck Martin
On Jan 12, 2015, at 4:58 PM, Mark Martinec wrote: >> On January 12, 2015 8:06:00 AM EST, Mark Martinec >>> It would be wrong to assign score to short keys. > > Kevin A. McGrail wrote: >> Actually the rfc specifies that keys 512 to 2048 bits must be verified >> so I think there is a grey area an

Re: possible bug in Mail::DKIM when keysize is under 1024 bits

2015-01-11 Thread Franck Martin
> On Jan 11, 2015, at 3:40 PM, Kevin A. McGrail wrote: > > I disagree as well. You can't cherry pick your quotes and you are missing the > long-lived caveat as well as the next sentence: Verifiers MUST be able to > validate signatures with keys ranging from 512 bits to 2048 bits > > If it is

Re: Honeypot email addresses

2014-12-01 Thread Franck Martin
On Nov 26, 2014, at 10:50 AM, Reindl Harald wrote: > > Am 26.11.2014 um 19:45 schrieb Franck Martin: >> On Nov 26, 2014, at 10:19 AM, Matthias Leisi > <mailto:matth...@leisi.net>> wrote: >>> >>> >> Agreed, it is cheap in resources. However,

Re: Honeypot email addresses

2014-11-26 Thread Franck Martin
On Nov 26, 2014, at 10:19 AM, Matthias Leisi mailto:matth...@leisi.net>> wrote: On Wed, Nov 26, 2014 at 6:05 PM, Franck Martin mailto:fmar...@linkedin.com>> wrote: As for /64, yes there are hosting providers that have all their customers in the same /64 and other cases lik

Re: Honeypot email addresses

2014-11-26 Thread Franck Martin
On Nov 26, 2014, at 2:15 AM, Kevin A. McGrail mailto:kmcgr...@pccc.com>> wrote: On 11/26/2014 1:53 AM, Matthias Leisi wrote: On Wed, Nov 26, 2014 at 3:45 AM, Franck Martin mailto:fmar...@linkedin.com>> wrote: You may want to read https://www.m3aawg.org/sites/maaw

Re: Honeypot email addresses

2014-11-25 Thread Franck Martin
On Nov 22, 2014, at 4:15 AM, Aban Dokht wrote: > > On 21.11.2014 18:17, Matthias Leisi wrote: >> We are about to simplify the reporting we >> previously had, and want to push this especially to detect spam coming >> in over IPv6. > > We also have honeypots with enabled IPv6 MX, but SPAM over I

Re: DMARC policy check with AskDNS posible?

2014-06-18 Thread Franck Martin
On Jun 9, 2014, at 11:27 PM, Christian Laußat wrote: > Am 10.06.2014 05:53, schrieb Franck Martin: >> This is not correct. I think it is strange to claim that yahoo or aol, >> being a co-creator of DMARC and having outstanding engineers in the >> profession do not kno

Re: DMARC policy check with AskDNS posible?

2014-06-09 Thread Franck Martin
On Jun 7, 2014, at 9:49 PM, Christian Laußat wrote: > Am 07.06.2014 19:55, schrieb Franck Martin: >> As DMARC provide a feedback mechanism to the sender, then it is up to >> the sender to deal with these issues, you are just following their >> policy, you don’t need to

Re: DMARC policy check with AskDNS posible?

2014-06-07 Thread Franck Martin
On Jun 6, 2014, at 10:30 AM, Christian Laußat wrote: > Am 05.06.2014 21:48, schrieb Franck Martin: >> If the policy=reject and the dmarc is fail, then spamassassin should >> not see the email because opendmarc would have already rejected it (if >> not it is due to loca

Re: DMARC policy check with AskDNS posible?

2014-06-05 Thread Franck Martin
A couple of comments… If the policy=reject and the dmarc is fail, then spamassassin should not see the email because opendmarc would have already rejected it (if not it is due to local policy override, so spamassassin should not change that) So if you reject on dmarc=fail, this may due to p=qu

Re: Plans for a DMARC plugin ???

2014-05-03 Thread Franck Martin
On Apr 30, 2014, at 5:05 AM, Christian Laußat wrote: > Am 30.04.2014 12:34, schrieb Michael Storz: >> Am 2014-04-30 11:00, schrieb Axb: >>> On 04/30/2014 10:30 AM, Michael Storz wrote: >>> and in the meantime may want to look at >>> http://sourceforge.net/projects/opendmarc/ >> OpenDMARC is ok

Re: false positives by FREEMAIL_FORGED_REPLYTO

2014-04-24 Thread Franck Martin
Interesting, thanks for pointing it out This syntax has been used in a while by some other software, like JIRA, RT, … so not something new. In general, I would say spamassassin needs a few extra rules to now handle domain reputation/blocking (as it seems this is where we are going), I even fou

Re: Catching fake LinkedIn invites

2013-09-06 Thread Franck Martin
May be to give some background and from there please apply what works best for you. Linkedin do DMARC.org, this means all the emails sent from Linkedin infrastructure will pass SPF (be with the mailfrom or helo strings) and be DKIM signed. Furthermore the domain present in all the strings will

Re: SPF failure very low score

2013-08-08 Thread Franck Martin
On Aug 8, 2013, at 10:49 PM, John Hardin wrote: > On Thu, 8 Aug 2013, Quanah Gibson-Mount wrote: > >> For SA 3.4.0, it says in 50_scores.cf: >> >> # SPF >> # Note that the benefit for a valid SPF record is deliberately minimal; it's >> # likely that more spammers would quickly move to setti

Re: Creating new rules

2013-08-01 Thread Franck Martin
On Aug 1, 2013, at 12:44 PM, Benny Pedersen wrote: > Franck Martin skrev den 2013-07-31 23:06: > >> Now as we move to IPv6, reputation will shift from an IP based type >> reputation, to a domain based type reputation. Unfortunately, spam >> assassin seems to be lackin

Re: Creating new rules

2013-07-31 Thread Franck Martin
On Jul 31, 2013, at 11:19 PM, RGB Camera mailto:zauschne...@gmail.com>> wrote: On Wed, Jul 31, 2013 at 2:06 PM, Franck Martin mailto:fmar...@linkedin.com>> wrote: On Jul 31, 2013, at 10:08 PM, Kevin Miller mailto:kevin_mil...@ci.juneau.ak.us>> wrote: > Problem is,

Re: Creating new rules

2013-07-31 Thread Franck Martin
On Jul 31, 2013, at 10:08 PM, Kevin Miller wrote: > Problem is, the from adddress is often a "Joe job" - i.e., a forged address, > so the domain mentioned there likely doesn't have anything to do with the > actual source of the mail. It seems to me that if the domain isn't the > actual sourc

Re: Creating new rules

2013-07-31 Thread Franck Martin
On Jul 31, 2013, at 7:56 PM, Ralf Hildebrandt wrote: > * Franck Martin : > >> I looked at http://spamassassin.apache.org/tests_3_3_x.html could not find >> any rule that do the above. Please help. > > That's a bit odd. I found it being mentioned here: >

Re: Creating new rules

2013-07-31 Thread Franck Martin
On Jul 31, 2013, at 7:43 PM, Jari Fredriksson wrote: > 31.07.2013 20:08, Franck Martin kirjoitti: >> Hi all, >> >> I noticed there is no rules to check if the domain in various emails fields >> are on blocking lists like DBL at spamhaus. I'm willing to work o

Creating new rules

2013-07-31 Thread Franck Martin
Hi all, I noticed there is no rules to check if the domain in various emails fields are on blocking lists like DBL at spamhaus. I'm willing to work on some of these rules, but I would appreciate any advice to bootstrap the process. If you can reference documents or say something like, look at t