Marc's Blog

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  1. Hi Marc,

    Apologies for hi-jacking this post but, I tried to email you directly on and received a delivery failure: Message rejected due to: SPF fail – not authorized.

    I was looking for some advise on an issue I have with my Fritzbox and VOIP. Is the best address to use?



    • Please use the comment function for now, other readers might be interested to learn about a potential solution to an issue or problem. Thanks.

      BTW, when reporting an error, it’s always helpful to provide the complete error message 🙂

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