On 12/07/2023 00:20, Jaroslaw Rafa via mailop wrote:
For start, I suggest to implement SPF, DKIM and DMARC only for outgoing mail, and in fact only to satisfy Google's requirement that these should be in place. Don't bother checking them on incoming mail. (It's actually how I do it). RBLs and content filtering are enough to protect from spam. I see close to zero improvement if I would check SPF and/or DMARC. Of course YMMV.
This is a terrible thing to suggest to someone. There's very little merit to accepting letters just like that.
More likely you'd be accepting phish, malware and other junk that would've gotten rejected if you respected DMARC as requested by respective owners of those domains.
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