Re: [Mailman-Developers] Remediation for fake member creation

2016-08-23 Thread Franck Martin
- Original Message - > From: "Stephen J. Turnbull" > To: "Franck Martin" > Cc: "Barry Warsaw" , "mailman-developers" > > Sent: Monday, August 22, 2016 9:06:31 PM > Subject: Re: [Mailman-Developers] Remediation for fake member

Re: [Mailman-Developers] Remediation for fake member creation

2016-08-22 Thread Franck Martin
- Original Message - > From: "Barry Warsaw" > To: "mailman-developers" > Sent: Monday, August 22, 2016 2:43:06 PM > Subject: Re: [Mailman-Developers] Remediation for fake member creation > On Aug 22, 2016, at 01:03 PM, Franck Martin wrote: > &

[Mailman-Developers] Remediation for fake member creation

2016-08-22 Thread Franck Martin
I'm not sure if you have seen the following blog posts: https://wordtothewise.com/2016/08/subscription-bombing-esps-spamhaus/ https://wordtothewise.com/2016/08/spamhaus-comments-on-subscription-attack/ https://wordtothewise.com/2016/08/ongoing-subscription-attack/ While mailman does double op

Re: [Mailman-Developers] Fixing DMARC problems with .invalid munge

2014-05-16 Thread Franck Martin
You can also apply this patch: http://bazaar.launchpad.net/~mlm-author/mailman/2.1-author/revision/1341?remember=1338&compare_revid=1338 Rather than injecting an invalid domain in the From: and weakening more the security of email... ___ Mailman-Deve

Re: [Mailman-Developers] Fixing DMARC problems with .invalid munge

2014-05-16 Thread Franck Martin
You are really mixing everything... Toute connaissance est une réponse à une question. > On May 16, 2014, at 20:09, "John Levine" wrote: > > In article <1856298671.144791.1400292991012.javamail.zim...@peachymango.org> > you write: >> The trouble with .invalid is that it is a domain that do not

Re: [Mailman-Developers] Fixing DMARC problems with .invalid munge

2014-05-16 Thread Franck Martin
Upgrade to 2.1.18 Toute connaissance est une réponse à une question. > On May 16, 2014, at 20:43, "Bob Puff" wrote: > > So guys... Is there a simple little hack we can do within MM 2.1 to try to > mitigate this issue, by adding .invalid or some other extension? I've got a > few lists that are

Re: [Mailman-Developers] Fixing DMARC problems with .invalid munge

2014-05-16 Thread Franck Martin
The trouble with .invalid is that it is a domain that do not accept emails. Therefore why should you accept emails from a domain that does not allow you to reply to it? It is bound in the future to create issues when people move to more serious/ubiquitous domain reputation schemes.

Re: [Mailman-Developers] Mailman DMARC Support (it's not what you think!)

2013-11-07 Thread Franck Martin
- Original Message - > From: "Jim Popovitch" > To: "Franck Martin" > Cc: Mailman-Developers@python.org > Sent: Thursday, November 7, 2013 4:59:38 PM > Subject: Re: [Mailman-Developers] Mailman DMARC Support (it's not what you > think!)

Re: [Mailman-Developers] Mailman DMARC Support (it's not what you think!)

2013-11-07 Thread Franck Martin
- Original Message - > From: "Jim Popovitch" > To: Mailman-Developers@python.org > Sent: Thursday, November 7, 2013 11:49:30 AM > Subject: Re: [Mailman-Developers] Mailman DMARC Support (it's not what you > think!) > > On Thu, Nov 7, 2013 at 1:27

Re: [Mailman-Developers] Mailman DMARC Support (it's not what you think!)

2013-11-07 Thread Franck Martin
Yes this is one of the other options to do. The last one is to do Original Authentication Header, but transitive trust on email is complicated. To be noted, the procedure, in this patch, to find the policy record in the DNS, is not in line with the best current practice specified in the DMARC sp

Re: [Mailman-Developers] Mailman DMARC Support (it's not what you think!)

2013-11-07 Thread Franck Martin
- Original Message - > From: "Andreas Schulze" > To: mailman-developers@python.org > Sent: Wednesday, November 6, 2013 11:28:42 PM > Subject: Re: [Mailman-Developers] Mailman DMARC Support (it's not what you > think!) > > > Zitat von Jim Popovitch : > > > ... that mailing lists, li

Re: [Mailman-Developers] Author_is_list option in upcoming mailman 2.1.16

2013-09-17 Thread Franck Martin
On Sep 17, 2013, at 10:36 PM, Mark Sapiro wrote: > On 09/17/2013 10:04 PM, Franck Martin wrote: >> >> 1) If you keep the From: header as it is then, we will still have the same >> problems > > > Perhaps I wasn't clear. The From: of the outer message wo

Re: [Mailman-Developers] Author_is_list option in upcoming mailman 2.1.16

2013-09-17 Thread Franck Martin
On Sep 17, 2013, at 6:21 PM, Mark Sapiro wrote: > On 09/17/2013 05:28 PM, Barry Warsaw wrote: >> On Sep 15, 2013, at 08:24 AM, Mark Sapiro wrote: >> >>> Because the issue remains controversial, I will soon release 2.1.16 >>> final with the feature disabled by default, and will consider the >>>

Re: [Mailman-Developers] Author_is_list option in upcoming mailman 2.1.16

2013-09-14 Thread Franck Martin
in a mime rfc822. This seems an interesting and good alternative. I'd like to see it in practice so we can compare data. On Sep 14, 2013, at 1:27 AM, Stephen J. Turnbull wrote: > Franck Martin writes: > >> One may argue that since the list is modifying the message, it is >

Re: [Mailman-Developers] Author_is_list option in upcoming mailman 2.1.16

2013-09-14 Thread Franck Martin
On Sep 14, 2013, at 5:16 PM, Stephen J. Turnbull wrote: > Franck Martin writes: > >> Unfortunately z= and especially l= are not used practically by >> senders because they create a risk. One could add an attachment >> containing malware to the message for instance.

Re: [Mailman-Developers] Author_is_list option in upcoming mailman 2.1.16

2013-09-14 Thread Franck Martin
On Sep 13, 2013, at 7:48 PM, Mark Sapiro wrote: > On 09/13/2013 12:18 PM, Franck Martin wrote: >> >> Mailman breaks DKIM as soon as you add a footer or tag in the subject line, >> which a lot of lists do (including this one). > > > Not necessarily. It depends

Re: [Mailman-Developers] Author_is_list option in upcoming mailman 2.1.16

2013-09-13 Thread Franck Martin
admin consent and action. On Sep 13, 2013, at 12:13 PM, Stephen J. Turnbull wrote: > Franck Martin writes: > >> In the upcoming mailman 2.1.16 there has been the introduction of >> the optional feature author_is_list >> >> "Replace the sender > > Bef

Re: [Mailman-Developers] Author_is_list option in upcoming mailman 2.1.16

2013-09-13 Thread Franck Martin
- Original Message - > From: "Mark Sapiro" > To: mailman-developers@python.org > Sent: Friday, September 13, 2013 11:31:44 AM > Subject: Re: [Mailman-Developers] Author_is_list option in upcoming mailman > 2.1.16 > > On 09/13/2013 08:06 AM, Barry Warsaw wrote: > > > > I will leave it t

Re: [Mailman-Developers] Author_is_list option in upcoming mailman 2.1.16

2013-09-13 Thread Franck Martin
On Sep 12, 2013, at 11:30 PM, SM wrote: > Hi Franck, > At 22:44 12-09-2013, Franck Martin wrote: >> In the upcoming mailman 2.1.16 there has been the introduction of the >> optional feature author_is_list >> >> "Replace the sender with the list address

[Mailman-Developers] Author_is_list option in upcoming mailman 2.1.16

2013-09-12 Thread Franck Martin
In the upcoming mailman 2.1.16 there has been the introduction of the optional feature author_is_list "Replace the sender with the list address to conform with policies like ADSP and DMARC. It replaces the poster's address in the From: header with the list address and adds the poster to the Rep

Re: [Mailman-Developers] Adding DMARC support for Mailman 3

2013-07-10 Thread Franck Martin
We are not asking mailman to do the work of DMARC here. There is openDMARC for that. On Jul 10, 2013, at 11:23 AM, Stephen J. Turnbull wrote: > Barry Warsaw writes: > >> For #1 you would have a rule that can answer the question of DMARC >> disposition. Rules output binary results, > > This i

Re: [Mailman-Developers] Adding DMARC support for Mailman 3

2013-07-10 Thread Franck Martin
On Jul 9, 2013, at 8:19 PM, Barry Warsaw wrote: > On Jul 06, 2013, at 11:02 PM, Murray S. Kucherawy wrote: > >> >> (a) the second bullet above is a significant departure from current use (as >> I understand it), and fails the test of least surprise if we were going to >> suddenly see that MM3

Re: [Mailman-Developers] Adding DMARC support for Mailman 3

2013-07-10 Thread Franck Martin
On Jul 9, 2013, at 8:15 PM, Barry Warsaw wrote: > On Jul 02, 2013, at 12:44 AM, Patrick Ben Koetter wrote: > >> Before we take out to write code, I would like to ask mailman-developers how >> it should be done to fit best into Mailman's architecture. Here are the DMARC >> features that should g

Re: [Mailman-Developers] Adding DMARC support for Mailman 3

2013-07-08 Thread Franck Martin
- Original Message - > From: "Mark Sapiro" > To: "Franck Martin" > Sent: Monday, July 8, 2013 10:37:01 AM > Subject: Re: [Mailman-Developers] Adding DMARC support for Mailman 3 > > On 07/08/2013 08:34 AM, Franck Martin wrote: > > > &g

Re: [Mailman-Developers] Adding DMARC support for Mailman 3

2013-07-08 Thread Franck Martin
- Original Message - > From: "Murray S. Kucherawy" > To: "Franck Martin" > Cc: "Stephen J. Turnbull" , "Mailman Developers" > > Sent: Monday, July 8, 2013 6:57:03 AM > Subject: Re: [Mailman-Developers] Adding DMARC support for M

Re: [Mailman-Developers] Adding DMARC support for Mailman 3

2013-07-08 Thread Franck Martin
- Original Message - > From: "Stephen J. Turnbull" > To: "Franck Martin" > Cc: "Mailman Developers" > Sent: Monday, July 8, 2013 2:01:43 AM > Subject: Re: [Mailman-Developers] Adding DMARC support for Mailman 3 > > Franck Marti

Re: [Mailman-Developers] Adding DMARC support for Mailman 3

2013-07-08 Thread Franck Martin
Yes, these are options and they should be off. It is important when you introduce options, you do not change past behavior automatically. 1) may not be necessary, if mailman recognizes the bounce message as in section http://tools.ietf.org/html/draft-kucherawy-dmarc-base-00#section-15.8 eg "550

Re: [Mailman-Developers] Adding DMARC support for Mailman 3

2013-07-06 Thread Franck Martin
much excitement in email for a long time. Franck Martin https://www.linkedin.com/in/franckmartin - Original Message - From: "Patrick Ben Koetter" To: "Mailman Developers" Sent: Monday, July 1, 2013 3:44:15 PM Subject: [Mailman-Developers] Adding DMARC support for Mai

Re: [Mailman-Developers] Getting to Mailman 3.0 final

2012-09-11 Thread Franck Martin
Unfortunately, I did not have time to look at porting the optional authorship settings from the branch I did on mailman 2.1 to 3.0. I suppose this is too late to make the 3.0 deadline, but from what I saw of the 3.0 code, this does not seem a complicated change. How can I register a bug, so tha

Re: [Mailman-Developers] mailing list to work with ADSP and DMARC

2012-07-21 Thread Franck Martin
f you start implementing DMARC > relevant features into MM3 code. If you get Murray Kucherawy, I don't know if > he's still on the list, to contribute/share ideas on DMARC you will very > likely get a bulletproof implementation - he's one of the driving forces > behind DM

Re: [Mailman-Developers] mailing list to work with ADSP and DMARC

2012-07-21 Thread Franck Martin
base in a view to submit a similar patch. Thanks. - Original Message - From: "Franck Martin" To: "mailman-developers" Sent: Tuesday, July 10, 2012 9:45:28 PM Subject: [Mailman-Developers] mailing list to work with ADSP and DMARC I did a branch on the 2.1 series to tes

[Mailman-Developers] mailing list to work with ADSP and DMARC

2012-07-12 Thread Franck Martin
I did a branch on the 2.1 series to test rewriting the From: header to be able to make emails to comply with DMARC and ADSP You can find the branch here: https://code.launchpad.net/~mlm-author/mailman/2.1-author and the diff with mailman main branch here: http://bazaar.launchpad.net/~mlm-au