On 9/24/2014 9:12 AM, Postfix wrote:
> I've got a handful of postfix servers in various subdomains of a
> private TLD. What I'm ultimately looking to do is rewrite anything
> going through the gateway box to a specific catch-all user of a
> legitimate domain, so at least I can deal with bounces and the sort.
>
> Starting: joeuser@somemachine.domain1.example.private
> Desired: catchall+joeu...@example.com
>
> I'm using masquerade_domains to collapse all the machines down to
> user@example.private as it's acceptable and preferred (not all have
> local delivery) for "internal" mail. All systems within that
> private domain use the same mail relay, and this'd happen before a
> rewrite if I understand the processing order.
>
> In the past I've used canonical mapping to rewrite something like
> user@example.private to u...@example.com, which is great for a 1:1,
> but not as much when you don't know all the end users that you'll be
> presented with.
>
> I'm guessing in this case, I need to do a sender_canonical regexp
> similar to:
> /^(.*@)example.private$/ catchall+${1}example.com
>
> However, what I'm looking to do is use address extensions for only
> mail that leaves for the internet, not all "in-house" mail. Is
> there a way without running a separate instance or additional box to
> easily make this distinction (specific localdelivery agent maybe?)
>
> I don't presently expect "return mail" to work (although I suspect I
> could script a delivery agent to convert from route-able catchall
> with address extensions to an internal user)
>
> Thanks for any gentle pointers in the right direction. I just can't
> seem to find the right combination of rewrite examples in
> documentation, and the local vs remote decision just complicates
> things ;)
>
> John
Perhaps one of these are what you're looking for?
http://www.postfix.org/ADDRESS_REWRITING_README.html#generic
http://www.postfix.org/SOHO_README.html#fantasy
-- Noel Jones
