Dev tools · alternatives · 2026
24 alternatives to Pacomail
Fake SMTP server: code, test, and collaborate on your emails
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Pacomail launched in 2022; newer entries below may have overtaken it.
- 1FS
2017 · develmail.com · its alternatives →
- 2AF
This is a side project of mine. Use this as your SMTP server in a test environment to guarantee that your users don't receive test emails. Looking for feedback, especially on the security side.
2024 · fakemail.stream · its alternatives →
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MailSnag▲83Automated email testing for dev/staging/QA/CI environments
2018 · mailsnag.com · its alternatives →
- 5
Mailtrap.io▲125Fake SMTP. Send Test Emails without spamming real customers
2014 · mailtrap.io · its alternatives →
- 6
Hi all! Excited to share cc.dev after months of work and refinement. The idea for this product came from trying to do email marketing for my side project, CubeDesk, a site where Rubik's Cube enthusiasts can time themselves, race with one another, train algorithms — it's a fun niche! With over 40k users, sending even a single campaign was becoming expensive with MailChimp. I knew AWS SES would be much cheaper, but it’s just an API with none of the other necessities you need for a robust email marketing platform. Beyond cost, I was also frustrated with having to make sure my database was…
2023 · cc.dev · its alternatives →
- 7
MailCue▲82Run as a fully hardened production email server.
Apr 2026 · olib-ai.github.io · its alternatives →
- 8
A fast SOCKS5 proxy that tunnels your traffic through what looks like normal SMTP email, bypassing Deep Packet Inspection firewalls. How it works: - Client runs a local SOCKS5 proxy (127.0.0.1:1080) - Traffic is sent to server disguised as SMTP (EHLO, STARTTLS, AUTH) - DPI sees legitimate email session, not a VPN/proxy Features: - One-liner install on any Linux VPS - Multi-user with per-user secrets and IP whitelists - Auto-generated client packages (just double-click to run) - Auto-reconnect on connection loss - Works with any app that supports SOCKS5 Tech: Python/asyncio, TLS…
Jan 2026 · github.com · its alternatives →
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SMTP‑Test.com▲103One‑click SMTP server test with real‑time protocol logs
2025 · smtp-test.com · its alternatives →
- 11
Hi HN, Two months ago, we launched MailFrom.dev, a fake SMTP server for developers who want to test email sending without hitting real inboxes – think of it like a simpler, cheaper alternative to Mailtrap or Mailhog with a focus on ease of use. Since then: - We’ve had 55 developers sign up with 4 paid subscription active and 821 test emails sent - Improved stability, speed, and small features our early users needed - Worked hard to add roles (wich will be released later next week) What's improved: - Better UI to inspect headers, bodies, and attachments - Faster inbox refresh and sync between…
2025 · mailfrom.dev · its alternatives →
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Cleanmails - Unlimited email verification
Jan 2026 · its alternatives →
- 13
Mailnest▲100Sandbox Email testing tool for IT product, service companies
2020 · mailnest.io · its alternatives →
- 14
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The collaborative email testing platform for modern teams
Dec 2025 · mailsandbox.com · its alternatives →
- 16
I've spent the last few months working on something I wish I'd had years ago. I kept running into the same issue: CI green, production mail broken. TLS handshake failures, DKIM alignment mismatches, SPF soft-fails ... the stuff that only surfaces when real mail servers are involved. Most test tools (Mailpit, MailHog) are catch-alls. They confirm "an email was sent" but don't validate the protocol. They also aren't designed for network-exposed environments: no auth, unprotected Web UI, easy to enumerate messages. VaultSandbox is my attempt at fixing that. It's a self-hosted SMTP gateway…
Jan 2026 · vaultsandbox.com · its alternatives →
- 17
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MailCheck▲49Stop Free Trial Abuse with Advanced Email Verification
2025 · mail-check.tech · its alternatives →
- 19
Automate email and SMS tests using any language or framework
2020 · mailosaur.com · its alternatives →
- 20
Robotomail provides email for AI agents, giving each agent a real mailbox it can create, send from, receive to, and manage via API. Provision mailboxes with one POST request, send and receive messages, and handle threading automatically. Get real-time inbound through webhooks or
May 2026 · robotomail.com · its alternatives →
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PowerDMARC▲57Stop hackers from sending emails from your domain with DMARC
2021 · powerdmarc.com · its alternatives →
- 23
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Developer tools for test data - Disposable Email & More
May 2026 · faketools.in · its alternatives →
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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 →