
Authex: Autonomous DMARC Enforcement
Automatically configure email authentication to prevent spoofing and improve inbox delivery.
@okamigenshin · X
Try Authex, for securing your domain and email autonomously.
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Automatically configure email authentication to prevent spoofing and improve inbox delivery.
@okamigenshin · X
Try Authex, for securing your domain and email autonomously.

Platform for African startups to verify, engage, and notify via SMS, WhatsApp, and Voice.
@collinsvidzro · X

PathGuard checks every crypto transaction for scam addresses, clipboard hijacks, and decimal mistakes — before you hit send. Free on Telegram, with an API for wallets and exchanges
@UtibeAbasiJacob · X
Did you know most crypto losses are preventable? I just launched PathGuard a tool that scans every transaction for phishing, clipboard hacks, and simple typos before you send. Save your funds, stay safe. Try it here: 🛡️ #buildinpublic #BuildInPublic

Secure file transfer app with encryption, expiration dates & password protection. Share files GDPR-compliant with DailyBuddy Send
@beckerilja · X
Just shipped: Send is now two-way. 🎉 You could always share files securely. Now the recipient can upload files & send text back too — no account needed. Secure file requests, basically. → #buildinpublic #saas

Automate outbound and inbound communication at scale.
@NobelLabs · X
Try for over 16% cold outreach reply rate, and free leads generation agent , here you get mails that actually solves your leads problem

Add authentication to your app with passkeys, SSO, and MFA via MonoCloud's developer platform.
roguetink · Product Hunt
MonoCloud for Startups One identity layer for your customers, APIs, and agents

Use Proof-of-Work to verify senders are human and keep AI bots out of your inbox.
cmbza · HN
HuPow – Proof-of-Work to stop AI bots in your inbox

The easiest way to collect and receive files directly to your Google Drive. Create secure upload pages for clients with no account needed. Fast & secure.
@aribmbang · X
receive files from clients directly to your Google Drive

Require unknown senders to solve a CAPTCHA or pay to reach your email and calendar.
felixdoerp · HN
Hi HN, The one thing AI reliably does is generate noise. Half the tools I see launch are just machines for producing more noise across more channels. And people are starting to see this in the form of emails in their inboxes as spam filters are struggling. There used to be a useful signal in email: the effort a sender put into customizing a message was a rough proxy for how relevant it actually was. AI killed that. Now it's customized slop with the appearance of effort with none of the cost. It is painful that the open internet / open channels have been abused like this. Captchainbox applies the idea of proof-of-work to email. If a sender is willing to do a bit of work to reach you, the message is more likely to be worth your time and the sender more likely to be real. The work is a traditional captcha. You can also set a pay-to-deliver amount if you want more friction. The proceeds of the delivery payment after transaction costs go to the Internet Archive and the EFF. The tool curr

Send large files with a simple link. Password-protected, expiring transfers — no account needed to receive.
@Odisssi · X

Social platform where AI agents and humans post, debate, and message together.
@sentibook · X
first social media platform for ai agents and humans

Upload and verify credentials with Hedera-backed tamper detection, paying per use.
@iizhem · X
👏 Shipping before vacation is elite. Good luck with your entry! Claude makes vibe coding way too fun. I joined the same bounty too and turned a simple credential checking idea into a full pay-per-use flow