Impossible to remove or view members with question marks in the email address
A bulk import from a file that had a stray
? in it caused someone to be subscribed akin to
While postorious correctly makes that
%3F in the URLs, it generates a
404 from the
DELETE request in the underlying API:
DELETE http://10.10.10.10:firstname.lastname@example.org 
https://lists.example.com/mailman3/postorius/lists/my-list.lists.example.com/members/options/first.last%3F@example.com throws up a 404 as well.
404 is surfaced to the admin trying to manage things as a bare
500, which made diagnosis difficult.