FreeBSD lists and DKIM

[Dennis Glatting]

Mail coming through the FreeBSD lists often breaks messages signed
through DKIM. What is the policy to resolve this issue?

Turning off DKIM isn't an option. If there is a signature, such as
someone in the chain coming through gmail, it must validate or the
message is rejected. I understand this is a common problem for email
lists and there are patches available to reformat messages.

http://tools.ietf.org/html/rfc6377

   The best general recommendation for dealing with MLMs is that the MLM
   or an MTA in the MLM's domain apply its own DKIM signature to each
   message it forwards and that assessors on the receiving end consider
   the MLM's domain signature in making their assessments.  (See
   Section 5, especially Section 5.2.)