Hackernews posts about DMARC

DMARC is an email authentication protocol that helps prevent email spoofing by validating the sender's domain name and ensuring the mail server is authorized to send emails on behalf of that domain.

1. DMARC Fail: 7 Causes and How to Fix Each (dmarcguard.io)
   16 points by meysamazad 8 days ago | 5 comments
2. Show HN: Domain DMARC Checker (dmarcdefender.io)
   6 points by c0nrad 5 days ago | 1 comments
3. I registered the domain from Cloudflare's DMARC docs (www.sh.consulting)
   5 points by alexshakhov 15 days ago | discuss
4. DMARC is now an IETF Proposed Standard: what's new in RFCs 9989–9991 (dmarcwise.io)
   2 points by matteocontrini about 9 hours ago | discuss
5. DMARCbis Is Published: RFC 9989, 9990, and 9991 Replace RFC 7489 (dmarcguard.io)
   1 points by meysamazad about 3 hours ago | discuss
6. How to Fix "DMARC Quarantine/Reject Policy Not Enabled" (dmarcguard.io)
   1 points by meysamazad 6 days ago | discuss
7. Show HN: E2a – Open-source email gateway for AI agents (github.com)
   48 points by mnexa 9 days ago | 3 comments
8. Show HN: I built a free email security checker for small businesses (shielddeskhq.com)
   3 points by minhajulmahib 25 days ago | 4 comments
9. Show HN: A DNS Security Audit Tool (dns-audit.com)
   1 points by marmot777 6 days ago | discuss
10. Why DKIM Fails and How to Fix Every Type of Alignment Error (dmarcguard.io)
    3 points by meysamazad 4 days ago | discuss
11. SPF Flattening and the 10-Lookup Limit: How to Fix Too Many DNS Lookups (dmarcguard.io)
    2 points by meysamazad 2 days ago | discuss
12. SPF Softfail vs. Hardfail: A Data-Backed Decision Guide (dmarcguard.io)
    1 points by meysamazad 3 days ago | 1 comments
13. MXToolbox Alternative (dmarcguard.io)
    1 points by meysamazad 1 day ago | discuss
14. SPF PermError: What Causes It and How to Fix It Step-by-Step (dmarcguard.io)
    1 points by meysamazad 3 days ago | discuss
15. EasyDMARC Alternative: Why Teams Are Switching (dmarcguard.io)
    1 points by meysamazad 6 days ago | discuss
16. I’ve joined Anthropic (twitter.com)
    1396 points by dmarcos 1 day ago | 599 comments
17. SpaceX says it has agreement to acquire Cursor for $60B (twitter.com)
    823 points by dmarcos 29 days ago | 989 comments
18. Editable 3D models with code or AI in Roblox (twitter.com)
    4 points by dmarcos 26 days ago | discuss
19. Show HN: Coord – atomic task claims for parallel AI coding agents (github.com)
    2 points by V1291l 12 days ago | discuss
20. Running local LLMs offline on a ten-hour flight (deploy.live)
    129 points by darccio 23 days ago | 105 comments
21. Improvements to errors and warnings in GCC 16 (developers.redhat.com)
    6 points by dmalcolm 22 days ago | discuss
22. What Happens When the Attribution Cartel Meets Advertising's Halo Effect? (www.adexchanger.com)
    2 points by dmarti 26 days ago | 1 comments
23. Twenty Years of Stacking Commits (julien.danjou.info)
    1 points by darccio 15 days ago | discuss
24. The Limits of Self-Improving in Large Language Models (arxiv.org)
    1 points by darccio 22 days ago | discuss
25. Windows quality update: Progress we've made since March (blogs.windows.com)
    177 points by jovial_cavalier 19 days ago | 530 comments
26. Draw Marc Andreessen on an Egg (eieio.games)
    75 points by LorenDB 13 days ago | 28 comments
27. Marco Polo: Finding a friend with only distance and motion (www.jackhogan.me)
    74 points by jackhogan11 9 days ago | 8 comments
28. Year of the Linux Laptop: Omarchy on XPS (www.dell.com)
    29 points by evanjrowley 18 days ago | discuss
29. 45800 tech employees laid off in March 2026 alone (layoffs.fyi)
    13 points by rachid_O 21 days ago | 2 comments
30. Ukraine says it shot down 33,000 Russian drones in March, a monthly record (apnews.com)
    9 points by MilnerRoute 22 days ago | discuss