[MM3-users] [Bug] Someone not a member of list is treated as member - strange

In my list test I have my address1 as member (only this one member). I definitely send a mail from my address2[sic] to ml test.

The list settings are:

1. accept mails from members (address2 is not a member)
2. discard mails from non-members (address2 is not a member of ml test)

When sending from address2, my mail is accepted. When I, for sake of completeness switch 1. to moderate mails from member[sic], my mail from address2 gets moderated.

Please explain. It looks like a bug.

I double-checked the field "accept from non-members" to be empty, yes, is empty, where I otherwise add all members by adding the internal ml whitelist in form of the entry @whitelist@mydomain.com .