Helo
An independent email API from former Postmark folks
Details
- External ID
- 1266002
- Source
- PH
- Company
- —
- Product
- Helo
- Website domain
- producthunt.com
- Launched
- Oct. 1, 2026
- Cohort
- —
- Upvotes
- 75
- Upvotes percentile
- 0.9860262008733625
- Tags
- Email, API, Developer Tools
- Fetched at
- Oct. 1, 2026, 5 p.m.
- Updated at
- Oct. 1, 2026, 5 p.m.
Description
Helo is an email API built for developers and platforms that send on behalf of their customers. Contain bad senders before they drag down deliverability, let customers send from their own domains, and keep stats, unsubscribes, and credentials separate per tenant. It also covers the fundamentals: REST API and SMTP, SDKs in popular languages, separate transactional and broadcast infrastructure, and usage-based pricing starting at just $0.00035 per email—all features included.
Enrichment
- Theme
- ai email management and deliverability
- Vertical
- Horizontal
- Function
- Dev tools
- Audience
- Developer
- AI stance
- Not AI
- Project type
- Commercial product
- Normalized one-liner
- email api for developers
- Manually corrected
- False
Could you build this?
No Building an independent email delivery API like Postmark requires massive MTA infrastructure, IP reputation management, anti-abuse algorithms, and direct ISP relationships that cannot be vibe-coded.
What it would actually take: A production email API requires running a distributed fleet of custom Mail Transfer Agents (MTAs like Postal, Haraka, or customized Postfix) with rigorous DKIM/SPF/DMARC signing, feedback loop processing, and automated IP pool warming. The platform must incorporate complex heuristic and machine learning spam detection pipelines to instantly suspend malicious tenants before IPs get blacklisted. Success depends on specialized domain expertise in email deliverability, DNS operations, and ISP network relations.
Competitors
Other products that read as similar to this one — 51 launches clear the similarity bar, closest 8 shown.
Attention rank: #1 of 52 (itself plus its competitors, highest first — normalized so YC and Product Hunt are compared fairly).
Launched 311 days after the earliest competitor.
- Helo · hn · 2026-10-01 · 11 upvotes · similarity 0.83
- Sendhit · ph · 2026-09-19 · 2 upvotes · similarity 0.46
- Posthaste · ph · 2026-09-21 · 2 upvotes · similarity 0.45
- Mailyte · ph · 2026-09-15 · 75 upvotes · similarity 0.42
- Velo · hn · 2026-02-21 · 7 upvotes · similarity 0.41
- MailCraft · ph · 2026-09-26 · 2 upvotes · similarity 0.36
- OfficialMail · ph · 2026-09-22 · 3 upvotes · similarity 0.36
- Pico API · ph · 2026-09-08 · 1 upvotes · similarity 0.36
Other launches for this product
Same idea, different domain
Nobody's really built a dev tools tool for Sales yet.