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Dev tools · alternatives · 2026

24 alternatives to InletOps

Hosted + self-hosted inbound email with API & AI

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.

  1. 1
    inbound ▲227

    Hey HN! I've been working on Inbound (inbound.new) - an email system that lets you programmatically manage email addresses and route them to AI agents, webhooks, or forward them anywhere. The core idea: instead of manually managing email addresses, you create them on-demand via API and route incoming emails to your AI agents or other automated systems. For AI Agents: Create [email protected] and emails get sent to your AI agent as webhooks. Your agent can reply using our SDK. Perfect for AI customer support or automated responses. For Email Forwarding: Set up [email protected] to…

    2025 · inbound.new · its alternatives →

  2. 2
    Upstream▲976

    The inbox designed for humans and agents

    Jun 2026 · upstream.do · its alternatives →

  3. 3

    Everything you need to start sending newsletters, drip campaigns, transactional emails. Mailcoach is a fully featured email marketing platform built for growing creators, developers, and businesses.

    2020 · mailcoach.app · its alternatives →

  4. 4

    Automate self-hosting of commercial open source products

    2023 · its alternatives →

  5. 5
    Mailforge▲627

    Cold email infrastructure sorted in minutes

    2024 · mailforge.ai · its alternatives →

  6. 6
    Outerspan▲205

    Deploy agents that have their own email inbox

    2025 · outerspan.com · its alternatives →

  7. 7
    00▲280

    Email software you can own

    2024 · double-zero.cloud · its alternatives →

  8. 8IA
  9. 9
    AgentMail▲275

    Email Inboxes for AI Agents

    Apr 2026 · agentmail.to · its alternatives →

  10. 10

    It's a self-hosted mailbox for all emails coming to your own domains, with Web interface and CLI included. Notes: - all emails share the same inbox, as long as set your DNS correctly - Web client via self-hosted Docker or Cloudflare Pages - need additional access controls, may use Basic Auth or Forward Auth with Cloudflare deployment

    2024 · github.com · its alternatives →

  11. 11
    Mailcheap▲123

    Email hosting, dedicated email servers, API-first platform

    2018 · mailcheap.co · its alternatives →

  12. 12

    Introducing Posthorn, a self hosted email gateway. One docker container (or Go binary) between every self hosted app on your VPS and your transactional email provider. Set up Posthorn once, point your apps to it, done. I was trying to deploy Ghost on a DigitalOcean droplet and found that DO and many different VPS services have started to block the default SMTP ports to try to combat the various types of abuse they get. To actually configure my app, I had to hack together a Postfix relay. In another project, I had a static site which had a contact form, but my free Formspree account was…

    May 2026 · github.com · its alternatives →

  13. 13

    Cold email infrastructure on autopilot without Gsuite

    Jun 2026 · deliveryman.ai · its alternatives →

  14. 14
    SetOps▲313

    Cloud deployment made for developers

    2022 · its alternatives →

  15. 15

    Access any email account to receive/send emails with an API

    2021 · emailengine.app · its alternatives →

  16. 16

    Extract data from emails. Automate your workflow.

    2016 · mailparser.io · its alternatives →

  17. 17
  18. 18

    AI-powered cold outreach platform

    2023 · outboundly.ai · its alternatives →

  19. 19

    Turn any email inbox into a native interface for AI agents

    Apr 2026 · blog.cloudflare.com · its alternatives →

  20. 20
    Mailway▲56

    OSS and self hostable catch-all incoming email routing

    2021 · github.com · its alternatives →

  21. 21

    1,000+ Emails per Second with 99%+ Deliverability

    Mar 2026 · mailercloud.com · its alternatives →

  22. 22
    Outbound▲117

    Generate personalized cold emails with AI

    2021 · tryoutbound.ai · its alternatives →

  23. 23WM

    Hi HN! We're a 5 person team working on simplifying the creation of email apps. Right now, most email services focus on outbound emails (newsletters, transactional, delivery), but that doesn't solve the fact that we all hate receiving them. You can try it at https://mailscript.com Mailscript lets you create programmable email addresses. It works headless, via the CLI, API (we use Swagger to support most languages). You can even run it as a daemon on a server (to run functions when emails arrive). Once you get [email protected], you can create as many aliases as you'd like…

    2021 · its alternatives →

  24. 24SR

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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →