Re: DMARC and mailing lists (was Re: IADB whitelist)

2017-12-26 Thread Matus UHLAR - fantomas

Matus UHLAR - fantomas skrev den 2017-12-26 18:49:


have you never been subscribed to spammers' blacklist without your
permission?


On 26.12.17 19:01, Benny Pedersen wrote:

hopefully apache.org does know how to handle spam


you did not narrow your sentence on apache mailing lists, perhaps you
should.

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Matus UHLAR - fantomas, uh...@fantomas.sk ; http://www.fantomas.sk/
Warning: I wish NOT to receive e-mail advertising to this address.
Varovanie: na tuto adresu chcem NEDOSTAVAT akukolvek reklamnu postu.
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Re: DMARC and mailing lists (was Re: IADB whitelist)

2017-12-26 Thread Benny Pedersen

Matus UHLAR - fantomas skrev den 2017-12-26 18:49:


have you never been subscribed to spammers' blacklist without your
permission?


hopefully apache.org does know how to handle spam


Re: DMARC and mailing lists (was Re: IADB whitelist)

2017-12-26 Thread Matus UHLAR - fantomas

RW skrev den 2017-12-26 18:05:

I didn't receive any posts in "IADB whitelist" thread from the OP
because they all failed DMARC with a reject policy. I found the posts
on gmane.


On 26.12.17 18:21, Benny Pedersen wrote:

stop reject maillists no matter if dmarc fails


have you never been subscribed to spammers' blacklist without your
permission?

--
Matus UHLAR - fantomas, uh...@fantomas.sk ; http://www.fantomas.sk/
Warning: I wish NOT to receive e-mail advertising to this address.
Varovanie: na tuto adresu chcem NEDOSTAVAT akukolvek reklamnu postu.
Microsoft dick is soft to do no harm


Re: DMARC and mailing lists (was Re: IADB whitelist)

2017-12-26 Thread Benny Pedersen

RW skrev den 2017-12-26 18:05:

I didn't receive any posts in "IADB whitelist" thread from the OP
because they all failed DMARC with a reject policy. I found the posts
on gmane.


stop reject maillists no matter if dmarc fails


Posting to mailing lists with a domain using a strict DMARC policy is
inherently risky because you are losing the redundancy of an aligned 
SPF

pass and there's a lot that can go wrong with DKIM.


policy reject is safe on spamassaasin maillist just like it is on 
postfix maillist, but you report a diffrent problem that does not help 
it



In this case the open-t.co.uk DKIM signature signed "reply-to" and a
lot of "list-*" headers that are added by the list. This guaranteed a
DKIM fail downstream of the list servers.


this is the error, sadly systems try to sign all headers without 
understanding what happend with this



I thought it as worth pointing this out to avoid others making similar
mistakes. However, DMARC problems could generally be mitigated by the
listservers adding ARC headers.


makw apache.org reject dmarc fails, possible ?, opendkim can test unsafe 
header signed


for maillist members add hermes.apache.org to opendkim AND opendmarc 
trusted sender ip


arc is basicly help make it worse :(

note signed headers on my post here, its default in opendkim, if more 
headers is signed it dmarc unsafe