[MM3-users] Re: Messages hold for moderation - compared to mailman2 it appears that there are fewer options: missing option(?)

Is there a possibility to

• to discard the present mail ; and
• accept this sender (non-member) for further mails ?

The reason:

• Member has sent from their office mail (= not yet known address) - mail 1 on hold and
• sent successfully mail 2 (copy of mail 1) from the known address

So I want to discard the mail #1 (because the copy mail #2 was sent already) but I want to add his office address as member or to the whitelist.

Can this be done in one step? It would be nice, at least.