Mail filtering

From: Alan Clifford (alan@coprolite.prestel.co.uk)
Date: Thu, 26 Mar 1998 00:00:09 +0000

A problem has developed with my service provider.

My son sends us emails with alan@coprolite.prestel.co.uk in the to:
field and margaret@coprolite.prestel.co.uk in the cc: field.

Until recently, we received 2 copies, one with an envelope-to: field of
alan@... and one with an envelop-to: of margaret@.... So, I was able
to use the Yarn filter to put them in separate mailboxes.

Now, I am getting a single message with an envelope-to: containing
alan@coprolite.prestel.co.uk, margaret@coprolite.prestel.co.uk.

How can I create/filter a second copy into the second mailbox?

Alan