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A comment on Poste.io – Complete Mail Server. Parent comment

Re:Poste.io – Complete Mail Server by rspoerri on Wednesday February 22, 2023 @05:22PM (#34903819)
from can be forged, but spf is there so only valid servers can send mail (or at least non valid can be filtered).
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Re:Poste.io – Complete Mail Server by layer8 on Wednesday February 22, 2023 @05:43PM (#34904077)
SPF can break with automatic email forwarding (though DKIM usually shouldn’t).
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