
SpamCrackers — Free SPF, DKIM & DMARC Checker & Email Signal Standard
Grade a domain's email protection: check SPF, DKIM, DMARC, and MX records in your browser.
@domainfyrbrand · X
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35 projects

Grade a domain's email protection: check SPF, DKIM, DMARC, and MX records in your browser.
@domainfyrbrand · X

Verify email addresses and check domain health to improve campaign deliverability.
@mailthentic · X

Autonomous DMARC, SPF, and DKIM configuration to prevent domain impersonation and protect email deliverability.
@okamigenshin · X
Try Authex, for securing your domain and email autonomously.

Generate disposable email addresses instantly to protect your privacy from spam.
@LateNightTo8xx · X

Create email aliases that forward to your inbox, keeping your real address private.
@me_jaythorat · X
lets you create email aliases on a free shared domain or your own custom domain, like [email protected]. Send and receive mail from them without ever leaving your primary mailbox and without revealing your real identity in case where you dont want to share your real email.

Email verification API with real-time validation via syntax, domain, MX, and SMTP checks.
@sachinbapure · X

AI tool to detect online scams, phishing attempts, suspicious emails and malicious links.
@ZiyadL6 · X

Email inbox integrated with CRM, Slack, and Claude.
thomas_housecat · HN
I got so frustrated with all of the busywork that was building up in my email inbox that I built something better. Housecat is the first email inbox that helps you get real work done. Our email connects to the other services you actually use like your Claude, Notion, Slack, CRM and Github and makes it easy to send messages and data between them. So if you need to update the CRM with a new lead, track a Github issue or ask a question of a colleague in Slack, you can do it all from right inside of

Manage email, website messages, and customer context in one shared inbox for small support teams.
@adultish_gavino · X
Vibe coding gets you to a demo fast. The first customer question is when it becomes a real product. Now you need a shared Inbox, website messages beside email, customer context, and no duplicate replies. I kept rebuilding that layer. So I made Minnas.

Set up free business email accounts on your domain with webmail and API.
@collinsjimu404 · X
Ready to ditch gmail and yahoo emails for something professional? Claim up to 15 FREE business email accounts on your own domain ([email protected]). No card needed. Quick setup. Professional, secure, and built to grow your brand. Start now.

AI email management tool that scores inbox by revenue risk, auto-drafts replies and prioritizes tasks.
@dailytaskproai · X

Secure GitHub pull requests with hardware authentication and OTP verification.
jallmann · HN
> want without a PR process that requires hardware authentication or proof of presence Just curious, what do you use for this? I built OTP Guard [1] a few years ago for exactly this problem, although I haven't seen any alternatives in the space. Does GitHub have something built-in now? The original framing was more "local malware compromising your GitHub account" ... it never occurred to me that the malware could be a LLM. I really should update the page. [1] https://otpguard.com