IO
IsDisposable – Open-source disposable email detection (160K+ domains)
Does the same job
all alternatives →- PEPlain Email – An app for one-touch email processing2016 · plainemail.com · ▲322
- IDIsTempMail – Detect and block disposable email addresses2017 · istempmail.com · ▲35
- HSHeimdall – Self-managed email alias/forwarding service2020 · github.com · ▲130
- WSWildDuck – Self-hosted modern email server2019 · wildduck.email · ▲222
- ASA self-hosted email engine2020 · mailcoach.app · ▲149
- OEOpenBSD Email Service – A free-email alternative2018 · github.com · ▲215
More dev tools this month
the category →



Open-source GTM skills for technical founders
Dev tools · 29d ago · gtmcofounder.com

OpenTrailPaper is open-source bike computer firmware for the LilyGO T5S3 4.7" E-Paper PRO. It supports offline maps, GPX routes, FIT recording and Bluetooth sensors.
Dev tools · 2d ago · opentrailpaper.com

Launched alongside, March 2026
the whole month →

Switch from ChatGPT to Claude with import memory feature
AI · Mar 2026 · claude.com


