Plain, sourced reviews of the big-name verifiers. Every price and term comes from the vendor's own page and is dated. Vendor claims are labelled as claims.
Updated 2026-10-23
We read each vendor's pricing and product pages, record the date, and separate what the vendor states from what we can verify. We don't quote reviewer text, and we don't rank on accuracy because no independent accuracy audit exists: see how to test a verifier on your own list. Mail Exchange is a competitor to every vendor reviewed here, so each page says where we fit.
Name, work email and a card. We save the card to keep the trial fair; it is never charged.
You can verify up to addresses until . Your card was not charged.
Instantly
Smartlead
HubSpot
Mailchimp
Apollo
Zapier
Google Sheets
Make
POST /api/v1/verifyor connect Claude, ChatGPT and Cursor with our MCP serverImport the good addresses into your sending tool, or let your tools call us automatically. Bounces drop and your domain stays healthy.