Re: List removals

Greetings,

* Stefan Kaltenbrunner (stefan@kaltenbrunner.cc) wrote:
> On 12/04/2017 03:42 PM, Tom Lane wrote:
> > Stephen Frost <sfrost@snowman.net> writes:
> >> * Andres Freund (andres@anarazel.de) wrote:
> >>> How about just redirecting some of them to more appropriate lists
> >>> instead?
> >
> >> They'd screw up people's filters, we're trying to deprecate the
> >> @postgresql.org list aliases, we'd end up making those lists look
> >> active through the archives when they really aren't (without more code
> >> anyway), and, frankly, I just don't see there really being value to it.
> >
> > I think a bounce would be fine if the bounce message contained something
> > like "this list is inactive, please send to <xxx@lists.postgresql.org>
> > instead".  How feasible is that?
>
> doable - but the challenge there is that if we want to generate a proper
> bounce we will have to accept the mail and send back a bounce - that
> however makes us vulnerable to bounce blow-back (if say somebody fakes a
> an email sender and we direct the bounce in that direction back).

Gah, no, absolutely not.  This is definitely not worth that.

> The other option is to reject the RCPT TO at SMTP time with a message
> like the above on our frontends - the problem there is that is it up the
> sending MTA to wrap that text into a bounce that might or might not be
> parsable by a human :/

I'd be alright with this as long as it's only a minimal amount of effort
required.  We've already spent more time discussing this than I think
it's worth.

Thanks!

Stephen