Open-source Go CLI tool for diagnosing email deliverability before sending. Checks SPF/DKIM/DMARC/PTR/MX DNS records with health scoring, verifies addresses via SMTP RCPT TO with bind-IP support, detects role-based emails (admin@, support@), corrects domain typos (gmial.com -> gmail.com), scans 29 RBL blacklists, and flags disposable email domains (~74k). Includes REST API. Free demo: https://probe.uspeedo.online/
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Maker
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Hi everyone! I built smtp-probe because I was frustrated by the lack of good open-source tools for diagnosing email deliverability at the command line.
Most existing solutions are either proprietary SaaS or don't cover all the angles (DNS, SMTP, blacklists) in a single tool. smtp-probe aims to be the swiss-army knife for email deliverability - from a Go CLI for ops teams to a REST API for automation.
With the latest v0.1.3 update, we added role-based email detection (identifies admin@, support@, sales@ addresses) and domain typo correction (catches gmial.com -> gmail.com mistakes).
Try it online at https://probe.uspeedo.online/ or install with: bash <(curl -fsSL https://raw.githubusercontent.co...)
Would love to hear your feedback!