On Sun, Oct 04, 2026 at 12:04:34PM +0200, Ihor Rusyn via Postfix-users wrote:
> The fallback should be triggered by the SMTP response, not by a manually
> maintained list of recipient domains.
>
> Is there a native Postfix mechanism for this, perhaps using transports,
> smtp delivery parameters, or some queue manager feature that I'm missing?
https://www.postfix.org/postconf.5.html#soft_bounce
https://www.postfix.org/postconf.5.html#smtp_reply_filter
https://www.postfix.org/postconf.5.html#smtp_fallback_relay
--
Viktor. 🇺🇦 Слава Україні!
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