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  • Re: ODD DNS behaviour on Pi ZERO W with Bullseye OS

    From Richard Kettlewell@3:633/10 to All on Thu Nov 20 08:50:19 2025
    Marco Moock <mm@dorfdsl.de> writes:
    On 19.11.2025 10:11 Uhr The Natural Philosopher wrote:
    On 19/11/2025 07:56, Marco Moock wrote:
    On 18.11.2025 15:27 Uhr The Natural Philosopher wrote:

    from=<oil-monitor@heating-controller>

    That is your first problem. Us a real existing address for that.

    No. I wont. Because it is effectively private intra domain email.

    Then make sure your postfix doesn't check that. It seems for me it does.

    That is obviously not going to cause a temporary failure looking up the
    MX for vps.templar.co.uk. Just look at the logfile fragment rather than guessing blindly. We know what the error is and it?s absolutely nothing
    to do with source address validity.

    --
    https://www.greenend.org.uk/rjk/

    --- PyGate Linux v1.5.1
    * Origin: Dragon's Lair, PyGate NNTP<>Fido Gate (3:633/10)