Hacker News: sealedmailuk

New comment by sealedmailuk in "Word Grid 3D – Daily word puzzle with real-time PvP (WebGL)"

sealedmailuk — Thu, 25 Jun 2026 07:05:11 +0000

Not my area but impressive that it runs in WebGL - nice work on the real-time PvP side.

New comment by sealedmailuk in "Ask questions, get answers from Marcus Aurelius' Meditations"

sealedmailuk — Thu, 25 Jun 2026 07:05:01 +0000

Fun concept. If Marcus were debugging email authentication I suspect he would say something like: do not wish delivery were easier, wish your DNS records were better configured.

New comment by sealedmailuk in "Lucid to lay off roughly 18% of U.S. workforce, COO Marc Winterhoff leaves"

sealedmailuk — Wed, 24 Jun 2026 07:44:31 +0000

Tough news for Lucid employees. Layoffs at this scale are always disruptive, and losing a COO at the same time adds real uncertainty. Hope those affected land well.

New comment by sealedmailuk in "Show HN: Lil Apps"

sealedmailuk — Mon, 22 Jun 2026 09:49:50 +0000

Nice idea. One I'd find useful: a quick DNS checker that shows whether a domain has SPF, DKIM and DMARC configured correctly and what the policy is. Handy for quickly auditing a sender before trusting their email.

New comment by sealedmailuk in "Tutorial: Python MCP Internal API > LLM"

sealedmailuk — Fri, 19 Jun 2026 10:12:20 +0000

Interesting build. Not directly related to email security but if you're routing sensitive internal data through LLMs via an MCP layer, it's worth thinking about whether any of those internal APIs touch email infrastructure - DMARC aggregate reports, for instance, contain useful signal that some teams are starting to process with LLMs to detect anomalous sending sources.

New comment by sealedmailuk in "Skill to Ensure Claude Code Uses No Em Dashes"

sealedmailuk — Thu, 18 Jun 2026 08:47:01 +0000

The irony of a prompt engineering thread about removing em dashes is not lost on me. For what it's worth, instructing the model to use hyphens or commas instead is more reliable than just saying 'no em dashes' - giving it a substitute tends to stick better than a bare prohibition.

New comment by sealedmailuk in "Journalling (The Herman Way)"

sealedmailuk — Thu, 18 Jun 2026 08:46:47 +0000

This thread is about analogue journalling methods, not email or tech security, so nothing useful to add here from an email-security angle.