The best email apis, according to hackers
5 email apis recommended in Hacker News comments over the past year, ranked by how many separate people recommend each one.
- Most recommendedAgentMail40 people recommend it
- Built to lastSendGridowners report a median of 10 years
- Least regretResend12 recommend, 9 criticize
- Free and lovedPosthorn5 people recommend it
All email apis
- AgentMailGives AI agents their own email inboxes through an API, with simple setup and no webhook plumbing; critics worry about spam abuse and the paid plan price.40recommend
- ResendDevelopers recommend Resend for easy setup and a free tier that suits small projects. Critics most often point to costs as sending volume and domains grow.12recommend
- MailgunPeople recommend Mailgun as an SMTP relay that works right away, with a free tier for low volume and lower cost than SES at higher volume. Critics say it is not built for untrusted senders.8recommend
- SendGridEmail sending service that people use to handle app email delivery for them, with a free tier for small volumes. Critics often report account blocks, blacklisting, slow support and spam sent through the platform.8recommend
- PosthornLets self-hosted apps send mail through a local relay to your transactional mail provider, with no mail server to run; one critic flags the risk of exposed mail services.5recommend