I got the following report and patch from Paul Wise:
"When you have bad emails in an emaillistex in the
admin interface (such as
privacy/sender/discard_these_nonmembers), the error
lists all the email addresses instead of just the bad
ones. This is annoying when you have heaps of addresses
(including a few bad ones) that were added from the
admindb interface with the "Add email@example.com to one of
these sender filters:" option (which doesn't seem to
check if the email is valid).
The attached patch applies to mailman 2.1.7, and makes
mailman only report the bad addresses instead of all of
Will you consider applying this?