On Mon 23/Jun/2025 15:33:06 +0200 sebastian wrote:
On Mon 23/Jun/2025 15:21:59 +0200 Alessandro Vesely wrote:
On Tue 17/Jun/2025 21:25:45 +0200 Sebastian Nielsen via mailop wrote:
In DNSBL and DNSWL usage, its easy to exempt the DNSBL and DNSWL source hosts
from the DNS rebinding protection.
Is it easy because we have lists of all DNSBL and DNSWL hosts worldwide?
No, but because you as a system administrator decide which DNSBLs and DNSWLs to
use, and can thus excempt the ones you use from the DNS Rebinding protection.
Except if, as in the case at hand, an "exists" SPF mechanism refers to a DNSWL
which is not among the ones you configured.
Best
Ale
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