Public bug reported:
Within the WebUI pages, e.g., https://temp.balug.org/cgi- bin/mailman/admin/balug-test/members , the subscriber addresses are shown correctly with preserved letter case, e.g., my fellow list admin Michael Paoli's address is shown as entered, as Michael.Paoli@cal.berkeley.edu . By contrast, the roster at https://temp.balug.org/cgi-bin/mailman/roster/balug-test shows his address with lettercase converted to lower, as "michael.paoli at cal.berkeley.edu".
This is with a new installation of Mailman 2.1.8, and I've confirmed the same behaviour with several prior 2.1.x installations.
Admittedly, mixed lettercase in the local parts of e-mail addresses has no functional importance on _most_ SMTP systems, there is nothing in the RFCs requiring case-insignificance for local parts (only for FQDNs), so this loss of entered data could cause some users difficulties.
** Affects: mailman Importance: Undecided Status: New
** Tags: lettercase lowercase roster
** Branch linked: lp:mailman/2.1
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)
** Changed in: mailman Status: Fix Committed => Fix Released