VerifyFlow bulk-verifies your existing list — upload a CSV and get a SAFE, PROTECTED, RISKY, or DEAD verdict on every row, then export the clean addresses to your sending tool.
Bulk-Verify Your List FreeDrop in your list of addresses — thousands of rows at a time.
Every address is checked with a live probe, catch-all detection, and risk signals.
Each row comes back SAFE, PROTECTED, RISKY, or DEAD — a clear action per address.
Download the clean segments, ready for Instantly, Smartlead, or your tool.
Lists decay — people change jobs and addresses go dead. Sending to a stale list drives hard bounces, and a high bounce rate hurts your sender reputation and inbox placement. Bulk verification removes the DEAD addresses and flags the RISKY ones before you ever hit send.
Upload a CSV and get a verdict on every address. No card required.
Bulk-Verify Your List Free