Folderly Lens

What it does

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.

Paste cold-email sending domains or sending IPs and get a public DNS, rDNS, authentication, and blacklist audit with a KILL / REHAB / KEEP fix plan. No signup.

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. Each checker feeds the same live scanner. Use one when the problem smells like DNS, authentication, IP reputation, blacklist exposure, or a reseller estate that needs a broader audit. Bigger estate? The full Folderly Lens audit scans every domain and IP you own — with signals the free batch can't reach: Both are Folderly products. Folderly Solo scores one cold email for a solo founder; Folderly Lens audits a whole domain estate for agencies. Different buyer, different problem. If you send from 1…from lens.folderly.com

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