mailman import21 fails if nonmember is banned.
Some Mailman 2.1 lists will have addresses in the ban_list
and also in discard
or reject
_these_nonmembers
. This causes import21 to fail when trying to add the banned address as a nonmember with reject
or discard
action. Since Mailman 3 discards posts from banned members, it isn't necessary to add these nonmembers anyway.
This should be handled by ignoring the MembershipIsBannedError
when trying to add nonmembers from discard
or reject
_these_nonmembers
.