[Mailman-Users] Somebody could not subscribe to pypy-dev at python.org

[Stephen J. Turnbull]

Mark Sapiro writes:

 > As I said before, this is reported as a bug
 > <https://bugs.launchpad.net/mailman/+bug/1447445> which is "fixed" for
 > the next release, and which fix has been installed for the
 > mail.python.org Mailman.

Note that the RFC-ly correct fix would involve a reverse lookup, which
is expensive.  And I wouldn't be surprised if that failed too for many
configurations in practice.