How much does it cost to verify 100,000 emails?

Here's what the same 100,000 checks cost elsewhere, each read on the vendor's own pricing page in September 2026. Bouncer lists $400 and Kickbox lists $500, and Kickbox credits expire one year from purchase. EmailListVerify lists $186, emailverify.io $130 and Reoon $116.40. ZeroBounce sells volumes of this size on a subscription, and Emailable quotes its larger tiers as custom.

A headline price is only half the bill. The other half is what a vendor charges a credit for. ZapBounce bills valid, invalid and catch_all results, because each one is a real answer from the mail server. Rows that come back unknown cost nothing, and neither does the second copy of an address already in your file. Our answer on which verifiers charge for unknowns lists the vendor rules.

Duplicates matter more than most people expect at this size. A 100,000-row export built from a CRM merge, a webinar list and a trade-show scan often holds the same person two or three times. ZapBounce dedupes before billing, so you pay once per distinct address and don't have to clean the file first.

Expiry is the cost nobody prints on the price tag. Buy 100,000 credits to clean a list in stages, and the unused part is only worth something if it lasts. ZapBounce credits never expire, so a pack bought in March still covers the list you import in December. Kickbox and Hunter both expire credits after 12 months (read 24 September 2026).

If you verify every month, a monthly plan costs 15% less: $118 for 100,000 credits instead of $139, and unused credits roll over while the plan is active. For a one-off file, upload it through bulk verification and you'll get your original columns back with the result fields added. The whole ladder, from $5 for 1,000 to $949 for a million, is on the pricing page.