Use of maxlength on non moderated lists

Hello everybody,

I´ve got a question on the usage of the "maxlength" parameter on a non
moderated list.
When someone sends an eMail message with attachment ( no matter what
type of attachment ) to the non moderated list and this message exceeds
the "maxlength" definied it gets bounced to the owner of the list ( what
is me ).

My problem is, that I´m not able to resend this message so that the
attachment is accessable. To be more precise, the message I send to the
list along with "Accepted: password" in the body gets delivered to the
list although it exceeds the maxlength but it is all plain text and it
is no usable attachment in it any more.

Can somebody please tell me what to do so that I´m able to resend such
bounce messages with attachment to the list so that everybody on the
list can use the attachment.

Thanks.

Tom