rfc822.Message:
Represents a single RFC 2822-compliant message.
mimetools.Message:
A derived class of rfc822.Message that knows about MIME headers
and contains some hooks for decoding encoded and multipart
messages.
xmlrpclib.ServerProxy:
uri [,options] -> a logical connection to an XML-RPC server
uri is the connection point on the server, given as
scheme://host/target.