
Email Verification API | Real-Time Validation for Developers | MailValid
Email verification API with real-time validation via syntax, domain, MX, and SMTP checks.
@sachinbapure · X
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Email verification API with real-time validation via syntax, domain, MX, and SMTP checks.
@sachinbapure · X

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

Connect Gmail accounts to automate email sending and track opens and clicks.
@KenziChenBuilds · X
Hey! Developer behind Always looking for feedback to make it better.

Create disposable inboxes via API to capture emails and OTPs for test automation.
@MailFixture · X

AI-native email platform for connecting agents to inboxes via MCP, API, and CLI.
@Mailpipe_dev · X
AI-native email with human oversight

AI contract reviewer that flags risks and tracks signatures directly from your inbox.
@raeezatameez · X
dropping mine - would love your take!

Protect your email and calendar by requiring unknown senders to solve a CAPTCHA or pay a fee.
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

REST API that gives AI agents real email inboxes to send, receive, and search messages.
@JenksGuo · X
New JD for software engineers: Loop Engineering Boris Cherny, who built Claude Code, said: "I don't prompt Claude anymore. I have loops running that prompt Claude and figuring out what to do. My job is to write loops." Straight out of latest newsletter, another good summary of how engineers' roles are shifting... The ultimate automation of engineers' job and any operations job using AI loops is a good answer to mangers, investors and shareholders. Especially in the async organization like Babylon Labs, where I have colleagues in 10+ time zones.

Generate personalized cold emails from your company name and description in seconds.
@BObalabi1 · X
Product designer working at the intersection of AI, UX, and product strategy. Portfolio: • • Most client work is under NDA, so sharing a few personal projects that showcase my design and product thinking. Happy to connect 👋

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.

Take AI-powered skill assessments to verify your knowledge and earn certifications.
@syprayt · X
We are building platform to verify user knowledge using AI, so you can avoid boring lectures and save years of life. It’s Academission baby. Yesterday we launched online mode, so that everyone could test our technology, here is the link:

Find verified sales prospects and launch personalized email campaigns based on your ideal customer description.
@buildwitbrandon · X