\method{readline()} method; in particular, ordinary file objects
qualify. Instantiation reads headers from the input object up to a
delimiter line (normally a blank line) and stores them in the
-instance.
+instance. The message body, following the headers, is not consumed.
This class can work with any input object that supports a
\method{readline()} method. If the input object has seek and tell
\begin{memberdesc}{addresslist}
A list of tuple string pairs, one per address. In each member, the
-first is the canonicalized name part of the address, the second is the
-route-address (@-separated host-domain pair).
+first is the canonicalized name part, the second is the
+actual route-address (@-separated username-host.domain pair).
\end{memberdesc}