Re: List removals

On 12/04/2017 08:03 PM, Tom Lane wrote:
> Stefan Kaltenbrunner <stefan(at)kaltenbrunner(dot)cc> writes:
>> On 12/04/2017 03:42 PM, Tom Lane wrote:
>>> I think a bounce would be fine if the bounce message contained something
>>> like "this list is inactive, please send to <xxx(at)lists(dot)postgresql(dot)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).
>
> Yeah, probably not great.
>
>> 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 :/
>
> Seems to me that that's an OK compromise. If people are using MTAs that
> fail to expose the rejection message, that's their problem not ours.

implemented that way

Stefan