[Mailman-Developers] dkim and email list software - potential solution

Daniel Black daniel at cacert.org
Thu Oct 1 10:57:27 CEST 2009

I proposed some ideas around DKIM compatibility with mail lists and tried to 
send here too. Obviously the anti-cross-post feature on mailman-
developers at python.org is working well (which on some levels I appreciate).

As leading maillist product I'm keep to know your opinion. This has obviously 
been mentioned before never quite got momentum[1]. Now that ADSP (RFC 5617) is 
out it seems that validating domains with a ADSP policy of dkim=all seems 
rather weak as anything other than a temporary spam bias (until spammers catch 

My nice controversial idea is to mangle the from: address in mailing lists in 
general so that the list domain becomes the author (for ADSP purposes) and 
those DKIM validating emails are given the ability to do more with ADSP than 
spam biasing.

Original post here http://mipassoc.org/pipermail/dkim-dev/2009-

Other ideas welcome.

[1] http://wiki.list.org/display/DEV/DKIM

Daniel Black
Infrastructure Administrator
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