[Mailman-Users] Postfix Mailman VERP

[Δημήτριος Καραπιπέρης]

Hi there

I am using Mailman -2.1.9-4 amd Postfix 2.6.5-1
on a Red Hat EL 5 box.

I am trying to configure VERP in some of my mailing lists but Postfix 
keeps complaining
about the addresses that do not exists in sender or recipient maps 
(virtual).

In fact they do not , but is there a way to convince it that they do 
exist but in VERP style form (+ delimiter)?

thanks in advance
Dimitrios