I am not sure if anyone noticed this, but i run a private email server, and found that emails for this forum are blocked as they're coming in as
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NOQUEUE: reject: RCPT from server-02.gfconcept.de[95.217.63.96]: 450 4.7.1 <server-02.localdomain>: Helo command rejected: Host not found; from=<[email protected]> to=<[omitted]> proto=ESMTP helo=<server-02.localdomain>
i would highly suggest changing the EHLO domain to the proper one to prevent being flagged as spam. I had to make an exception in order to receive emails.