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The original was posted on /r/opensource by /u/Consistent_Equal5327 on 2025-04-26 19:32:20+00:00.
Hey everyone,
I built a CLI tool because I was tired of paying for services that guess email patterns and return unverifiable results.
What it does:
You provide a name + domain (e.g. John Smith + example.com), and it:
- Generates likely email patterns (
john.smith@,j.smith@, etc.) - Scrapes the company website for public addresses
- Resolves MX records and connects to mail servers (SMTP)
- Performs
RCPT TOchecks to see if addresses actually exist - Outputs ranked results with confidence scores and full logs (in JSON)
It supports batch mode, config files, concurrency, and works fully from the command line.
Why open-source?
Because this kind of tool should be transparent and auditable.
Too many SaaS companies wrap basic scraping + guessing in a black box with a high price tag. I wanted something I could inspect, extend, and run on my own terms — no tracking, no API keys, no login.
MIT license. No telemetry. No nonsense.
Would love feedback if you try it out, or ideas if you want to contribute.