Michael, you might want to apply this locally (just one line added using a text editor).

----- Forwarded message from Mark Sapiro mark@msapiro.net -----

Date: Mon, 31 Jul 2017 00:55:33 -0000 From: Mark Sapiro mark@msapiro.net To: rick@linuxmafia.com Subject: [Bug 1707447] Re: Roster should not lowercase addresses Reply-To: Bug 1707447 1707447@bugs.launchpad.net

Thank you for your report.

If you want to patch it, it's a one-line addition - http://bazaar.launchpad.net/~mailman-coders/mailman/2.1/revision/1721

** Changed in: mailman Importance: Undecided => Low

** Changed in: mailman Status: New => Fix Committed

** Changed in: mailman Milestone: None => 2.1.25

** Changed in: mailman Assignee: (unassigned) => Mark Sapiro (msapiro)