Wir bekommen inzwischen viele Spam-Mails mit Betreff "... rezep-tfrei Onlinebestellung .."
Der Text vor und nach "rezept-frei" variert, die Position des Bindestrichs im Word ebenfalls.
Die Absender-URL-SMTP beginnt meistens mit firewall. , der Rest variert.
SPF ist korrekt, der proxmox-score...
I encountered this Error last week the first time (one sender in hundred thousands) and found out, that he had a broken SPF-entry in his DNS.
So i believe that the broken DNS SPF-Line produces a timeout in proxmox.
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