The mailing list for listmasters using Sympa

[Adam Bernstein <address@concealed>]

Serge -- thanks for the suggestions about easier testing methods.  We'll 
see what we turn up.

And Micah (good to hear from you!) -- yes, we have tried activating DKIM 
via Postfix with the DKIMProxy module, and that was easy to set up and 
worked great.  But as Serge says, doing it at the Sympa level would let us 
sign just some messages and not others.  That's pretty attractive, 
certainly for testing purposes, but mostly because we saw (as expected) a 
vastly increased CPU load from the unlimited DKIM signing.  So we're not 
sure we can manage it on all list messages; we might need to restrict it to 
only administrative messages or similar, even on the new server we just 
installed.  That would be frustrating, since DKIM may become increasingly 
necessary for deliverability of list traffic especially, but it would still 
be better than no signing at all.

     adam