Wietse Venema:
> Eric Kimminau:
> > Good morning!
> >
> > I have long respected your open source efforts since we worked together
> > during the Linux MIPS port when I was at SGI.
> >
> > I appreciate your comments and suggestions but you really haven't been of
> > any help. You pointed me down a path that wasn't sustainable (write
> > transport blocks for every domain on the internet except the 3 you want to
> > allow) and questioned me on why my customer is giving their requirements
>
> My proposed solution used only transport rules for the few domains
> that are "good". It used ONE wild-card pattern for everything else.
>
> In addition, Victor Duchovni came upo with a solution that could
> fit into this wild-card rule (a content filter-based approach) that
> could send the "bad" mail to any destination of your liking.
>
> This seems to provide exactly what you want.
The simplest solution is to use virtual_alias_maps.
/etc/postfix/main.cf:
virtual_alias_maps = regexp:/etc/postfix/virtual
/etc/postfix/virtual:
if !/@(example1|example2|example3)\.com$/
/./ catch...@example.com
endif
This redirects all domains except three.
Wietse
