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Folderly Lens
Domain health analysis for high performance email campaigns
Most people are running email campaigns with damaged domains and they don't know it. Now you can find out quickly and easily. Folderly Lens checks public DNS, authentication, MX, IP rDNS, and blacklist signals, then returns a KILL / REHAB / KEEP verdict with a copyable fix plan. No signup, no mailbox access, no test sends.
Top comment
Hey Product Hunt :wave: I'm Vlad, Founder of Folderly. We've spent years helping sales teams fix deliverability problems after they've already killed their sender reputation and the most painful cases are always the same: someone bought 20+ sending domains from a reseller, assumed they were isolated, and found out they weren't when reply rates collapsed. We thought we'd put together a simple tool that could help. Folderly Lens exists because that diagnosis used to require either a consultant or painful manual DNS spelunking. Now you paste your domain/IP list, and in seconds you get a per-asset KILL / REHAB / KEEP verdict backed by live SPF, DMARC, DKIM, MX, rDNS, and blacklist checks. No mailbox access, no API keys, no test sends. We built this for outbound agencies and sales teams running multi-domain estates who need an answer they can actually act on. The first full audit is free, and we've already run it on a 90-domain client estate where we found 17 SURBL-listed domains the team had no idea about. Would love your feedback and if you're running cold outbound, drop your estate in and let us know what the scanner surfaces. :pray:
About Folderly Lens on Product Hunt
“Domain health analysis for high performance email campaigns”
Folderly Lens launched on Product Hunt on July 1st, 2026 and earned 114 upvotes and 29 comments, placing #20 on the daily leaderboard. Most people are running email campaigns with damaged domains and they don't know it. Now you can find out quickly and easily. Folderly Lens checks public DNS, authentication, MX, IP rDNS, and blacklist signals, then returns a KILL / REHAB / KEEP verdict with a copyable fix plan. No signup, no mailbox access, no test sends.
On the analytics side, Folderly Lens competes within Email, Marketing and SaaS — topics that collectively have 545.5k followers on Product Hunt. The dashboard above tracks how Folderly Lens performed against the three products that launched closest to it on the same day.
Who hunted Folderly Lens ?
Folderly Lens was hunted by Vladyslav Podoliako. 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.
Reviews
Folderly Lens has received 47 reviews on Product Hunt with an average rating of 5.00/5. Read all reviews on Product Hunt.
For a complete overview of Folderly Lens including community comment highlights and product details, visit the product overview.