Bulk validation

Validate an entire CSV list in minutes.

Upload your contact file and VeryFire checks every address for deliverability, domain health, typos, role accounts, disposable inboxes, and spam traps. You get a detailed report and a processed file ready to filter and download.

Get started with bulk validation Try single address checker

How it works

1

Upload your CSV

Drag in any CSV containing an email column. VeryFire picks it up, queues the job, and starts processing immediately.

2

Get a full report

Once complete, see your deliverable rate, burned address count, and a breakdown across every signal type — all in one view.

3

Export what you need

Download the full processed file, or use the custom export to filter by type and choose between a detailed report or a plain email list.

What gets checked

Every record in your file is evaluated across all of these signals.

  • Deliverable Confirmed safe to send — MX reachable and mailbox active.
  • Invalid Bad syntax or unresolvable domain — will bounce.
  • MX Not Found Domain exists but has no working mail server.
  • Role accounts Addresses like info@ or support@ that hurt engagement rates.
  • Disposable Temporary inboxes from throwaway email services.
  • Autocorrected Detected typos with a suggested correction included in the output.
  • Spam traps Honeypot addresses that damage sender reputation on contact.

Custom export

Filter your results before downloading. Include or exclude any combination of address types, then choose your output format.

✅ Deliverable — Safe to send❌ Undeliverable — Will bounce🚫 Should block — High risk🗑️ Disposable — Temporary services📧 Free domains — Gmail, Yahoo, etc.👤 Role accounts — info@, support@, etc.🕷️ Spam traps — Honeypots🔧 Autocorrected — Fixable typos detected

Output format