[Mailman-Users] Automatically accept messages with implicit destination?

[Peter van Dorp]

Dear list members,

All messages sent to my list are actually forwarded by means of a  
(single) mail address alias. This means that for each message, the  
To: address is not the list address; it is a mail alias that relays  
the mail to the list.

As a -- much unwanted -- result, each message is submitted to the  
list administrator with the following request:

=======================
As list administrator, your authorization is requested for the
following mailing list posting:

     List:    [listname]
     From:    [any member]
     Subject: [anything]
     Reason:  Message has implicit destination
=======================

Is there a way to avoid this request and accept all messages with  
implicit destination automatically?

Best regards,
Peter van Dorp