On Thu, Apr 27, 2023 at 11:13:13AM -0300, Rejaine Monteiro via Postfix-users
wrote:
> I have a Postfix 3.4.13 that sends non-delivery notifications with a blank
> "from" address, like so:
>
> postfix/bounce[3337994]: 536301634D8: sender non-delivery notification:
> 421CF1634EB
> postfix/qmgr[2272522]: 421CF1634EB: from=<>, size=8212, nrcpt=1 (queue active)
This is *required* by the SMTP specification, in order to avoid bounce
loops.
> How can I fix this?
There's nothing to fix.
> And is there any way to not send bounces to a specific email (ex:
> don't send bounces to nore...@domain.com)
Don't accept email from them (or anyone else for that matter) that will
later bounce. As much as possible "reject" undeliverable mail *before*
it enters the queue.
--
Viktor.
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