This product was not featured by Product Hunt yet. It will not be visible on their landing page and won't be ranked (cannot win product of the day regardless of upvotes).
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/
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!
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About smtp-probe on Product Hunt
“Go CLI for email deliverability diagnostics”
smtp-probe was submitted on Product Hunt and earned 2 upvotes and 1 comments, placing #158 on the daily leaderboard. 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/
smtp-probe was featured in Email (36.8k followers), Open Source (68.7k followers), Developer Tools (517.5k followers) and GitHub (41.4k followers) on Product Hunt. Together, these topics include over 128.2k products, making this a competitive space to launch in.
Who hunted smtp-probe?
smtp-probe was hunted by 魏baoshi. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
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