My first guess would be that Mailman is submitting the mail using port 25.See if you can configure Mailman to use port 587 instead.
Jason>>> "bob 001" <[hidden email]> 7/7/08 12:26 PM >>>
Also,when I send the simple message from ageoftruth server on one-to-one basistoyahoo id, it says domainkeys=pass.That means it does add the signature.Only when listserv gets involved, postfix and dkimproxy for some reason
arenot adding the signature.Also, current setting in mailman's Defaults.py is :- REMOVE_DKIM_HEADERS =No.So, it seems postfix and dkimproxy is not adding the signature at all forsome reason. It seems, my configuration is not OK :-(. Kindly help.