Verification results are valid for 60 days. When you create an export, each address is either checked live at that moment or served from a check made within the last 60 days. Both count as verified.
What that means for a file you already have. A CSV downloaded today reflects the state of those addresses today. Two months later it no longer does, because people move and mailboxes are closed. The file itself does not change, and nothing warns you, so treat the download date as the file's expiry marker.
- Export close to the day you send, not weeks ahead.
- For a segment you mail repeatedly, keep the saved list as the source of truth and export a fresh slice each cycle. Saved lists store filters rather than a snapshot, so a re-run reflects the current market.
- Re-download a past export from Exports at any time if you simply lost the file. Re-fetching a file you already paid for is not a new purchase.
- Creating a genuinely new export runs verification again and charges one credit per verified contact, with nothing charged for addresses that fail.
The practical rhythm most teams land on is a standing saved list per segment plus a fresh export at the start of each campaign. It keeps files current, it keeps costs proportional to what you actually mail, and it means nobody is ever sending from a spreadsheet of unknown age.