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A comment on Ask HN: How do you protect your Mailserver from DDoS Attacks?.

Re:Ask HN: How do you protect your Mailserver from DDoS Atta... by toast0 on Friday August 14, 2020 @03:41AM (#24155001)
If you're getting overwelmed with bounces for mail you didn't send, setup SPF, DKIM, and DMARC so responsible mailservers can reject spoofed messages early and not bounce things as much.
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