And ANY non-valid signature must be treated as if it were not present in the message at all. The fact that an MLM breaks a signature is not unique for MLMs. Any agent in the path between signer(s) and verifier(s) can break a signature. Let's keep it clear: a broken signature is to be ignored (base DKIM spec). But removing signatures without a good reason is wrong.
/rolf <ATT00001..txt> If I have an email message in my possession and wish to send it on for any reason whatsoever I can remove mangle or otherwise any portion of the message for any reason at all. Why should I keep any forensic information before sending the message on? I am taking responsibility for sending my messages, no one else. _______________________________________________ NOTE WELL: This list operates according to http://mipassoc.org/dkim/ietf-list-rules.html