EmailAuth.app

What it does

Free email authentication tool to analyze and verify your domain's SPF, DKIM, and DMARC records. Available as a web tool and ChatGPT plugin. Improve email deliverability, prevent spoofing, and secure your domain with actionable recommendations.

• 
  DMARC Checker2024 · dmarcchecker.app · ▲70

  Verify your DMARC, DKIM, and SPF settings with our free checker. Prevent bad actors from impersonating your domain and improve email deliverability.

• 
  Email InspectNov 2025 · emailinspect.com · ▲9

  Free dmarc, spf & dkim analyzer tools

• 
  DMARC Checker2024 · dmarcchecker.app · ▲5

  Ensure your emails pass DMARC/DKIM/SPF authentication

• 
  Email Deliverability ToolkitAug 2026 · truelist.io · ▲9

  9 free tools to keep your email out of spam

• 
  MailerCheck 2.02023 · mailercheck.com · ▲145

  All-in-one email deliverability platform for businesses

• 
  Email Deliverability API & CheckerAug 2026 · web-production-80c77.up.railway.app · ▲2

  Instantly audit SPF, DKIM & DMARC to stop landing in spam.

• 
  /dev/null▲490

  a social network for devs

  Dev tools · 3d ago · dev-null.sh

• 
  Whiteboard (YC W26) – an open-source IDE for thoughtful software design▲423

  open-source IDE for thoughtful software design. Contribute to devdotfast/whiteboard development by creating an account on GitHub.

  Dev tools · 28d ago · github.com

• 
  Reladraw – A diagram language where you decide where to place things▲411

  Contribute to reladraw/reladraw development by creating an account on GitHub.

  Dev tools · 26d ago · github.com

• 
  OpenBot▲362

  Grok Bot alternative: free, local, open-source, multiplayer

  Dev tools · 23d ago · openbot.run

• 
  Talanoa▲346

  Hi HN, I’m a fullstack developer, and honestly, I’ve lost count of how many side projects I’ve worked on over the years. But one idea kept coming back to me: a different kind of email client. It first came to me in 2014: “What if we could handle emails more like conversations?” Every year, I’d revisit this concept in my “Build Notes.” Ten years later, no one had built exactly what I had in mind — so I finally decided to do it myself. That’s how Talanoa was born. I wanted something focused on people, not timelines. I was tired of marking messages as unread just to remember to reply later, or…

  Dev tools · 21d ago · talanoa.email

• 
  CoreSpeed▲332

  One MCP for everything your agents need: apps, memory, tools

  Dev tools · 29d ago · corespeed.io

• 
  Sider 5.0: Deep Research with Wisebase▲1,358

  Mimic Human Research & Save Findings in AI Knowledge Base

  AI · 2025 · sider.ai

• 
  MGX (Now Atoms)▲1,296

  Turn your ideas into products that sell

  AI · 2025 · atoms.dev

• 
  Aha▲1,152

  The world's first AI influencer marketing team

  AI · 2025 · ahacreator.com

• 
  Fluently▲976

  Start speaking English as well as your native language

  AI · 2025 · getfluently.app

• 
  TheySaid 2.0▲917

  Conversational AI surveys, interviews, user tests, polls

  AI · 2025 · theysaid.io

• 
  ツSupercut▲880

  Record your screen, share instantly, look like a PRO

  Growth · 2025 · supercut.ai