E‑Mail Security (SPF/DKIM/DMARC)
E‑Mail Security (SPF/DKIM/DMARC)
SPF‑Record restriktiv, DKIM aktiv, DMARC „quarantine/reject“ nach Monitoring‑Phase
Revision #1
Created 26 September 2025 09:54:01 by Ahorn
Updated 26 September 2025 09:54:01 by Ahorn