VeriMails vs Kaspr

Verification Accuracy

Kaspr and VeriMails are not really the same kind of tool, and accuracy means something different for each. Kaspr is a contact finder. Its job is to reveal an email or phone number when you view a LinkedIn profile, and its accuracy is best understood as how often the data it surfaces is correct. Independent reviews place Kaspr's email accuracy in the range of 75 to 80 percent, with phone accuracy lower, often cited around 50 to 65 percent and more reliable for European numbers than US ones. Those numbers are reasonable for LinkedIn-sourced data, but they describe contact quality, not a verification you can run on a list.

VeriMails exists to do one thing precisely: confirm whether an email address will deliver. It takes any address, no matter where it came from, and runs it through syntax validation, MX record lookup, DNS checks and a live SMTP handshake with the receiving mail server, and it also screens for disposable domains and role-based addresses such as info@ or jobs@. VeriMails then returns clear deliverability categories for segmentation before outreach. The honest framing is that Kaspr finds contacts and VeriMails verifies them. A team using Kaspr to build a list still benefits from running that list through a dedicated verifier before a campaign, because a 75 to 80 percent accurate finder output left unverified will produce more bounces than most sending platforms tolerate.

Catch-all Handling

Catch-all domains accept any address at the SMTP layer, so a plain handshake cannot prove a specific mailbox exists. Kaspr does not publish detailed catch-all verification handling, and that is consistent with what Kaspr is: a sourcing tool focused on revealing contact details from LinkedIn, not a deliverability engine. If a contact Kaspr surfaces happens to sit on a catch-all domain, you generally will not get an explicit catch-all label to act on.

VeriMails treats catch-all status as a core, visible output. It performs catch-all detection, identifying every address on a catch-all domain and flagging it clearly so the uncertainty is never folded into a generic valid result. With that flag you can set a deliberate policy: exclude catch-all addresses from a reputation-sensitive campaign, send to them at a slower pace, or warm them up as a separate segment. This matters most on B2B lists, where catch-all domains are common, and it is precisely the case where Kaspr's sourced data needs a second pass. The difference is one of purpose. Kaspr is built to find people. VeriMails is built to tell you, address by address, which of those people you can safely email, including the catch-all ones that need extra care.

API and Developer Experience

Kaspr does offer an API, and advanced API access is part of its Business plan. The Kaspr API is built around enrichment, letting you pass in identifiers and get back contact data such as emails and phone numbers, which is genuinely useful if you want to automate the sourcing that Kaspr does so well. The constraint to be aware of is that Kaspr's bulk extraction generally depends on a LinkedIn Sales Navigator subscription, a separate cost and account, and the API is an enrichment interface rather than a verification one.

VeriMails ships a verification API as a first-class product. It is a clean REST interface with single-email and bulk endpoints, JSON responses and webhook support, so a large batch job can call your system back when it completes. Single-email checks typically returns a clear result, which makes VeriMails practical for real-time use such as validating an address at the point of signup or form submission. Because VeriMails has no LinkedIn dependency, you can integrate it into any product or pipeline without a third-party subscription. The clean summary is that Kaspr's API enriches contacts with data and VeriMails' API verifies whether email addresses are deliverable. They sit at different points in the workflow, and the right one depends on whether you are sourcing contacts or confirming them.

Pricing and Value

Kaspr prices per seat with a credit system, and the credits are split into types that are not interchangeable: phone credits, direct-email credits and export credits. The Free plan includes 5 phone and 5 direct-email credits per month plus unlimited B2B emails. Paid plans, billed annually, are Starter at $49 per month, Business at $79 per month and Organization-style tiers around $99 per month, with Enterprise custom. One detail matters a great deal: Kaspr's unlimited B2B emails are generic company addresses such as info@ or contact@, not personal work emails. Personal work emails consume limited direct-email credits, and on the Starter plan those direct-email credits are scarce. Kaspr credits also expire monthly, and bulk extraction generally needs a separate Sales Navigator subscription.

VeriMails sells verification credits directly. You buy a pack, pay once, and the credits never expire.

A fixed-volume comparison makes the picture clear. With VeriMails, verifying 10,000 emails costs $19 on the 10,000-credit pack, with no monthly commitment and no expiry. Kaspr's Starter plan at $49 per month provides only a small number of direct-email credits, so it is not designed to verify, or even find, 10,000 personal addresses in a month. To verify 100,000 emails, VeriMails costs $99 on the 100,000-credit pack at $0.00099 per email, and falls further on larger packs. VeriMails also offers monthly subscriptions for teams that prefer fixed billing, from $15 per month for 10,000 verifications upward. The fair takeaway is that the two prices buy different things. Kaspr's subscription buys you the ability to reveal contacts, especially phone numbers, on LinkedIn. VeriMails' price buys verification at scale, with transparent per-email cost, no credit-type juggling and no expiry.

Who VeriMails Is Best For

• Teams cleaning lists they already have. If your addresses come from a CRM, a webform or an earlier campaign, VeriMails verifies them directly with no LinkedIn extension required.
• High-volume senders watching cost. Per-email cost falls to $0.00099 on the 100,000-credit pack and lower beyond it, and credits never expire so nothing is lost to a billing cycle.
• Developers who need a hosted verification workflow. A REST API with single, bulk and webhook support and fast responses fits real-time signup validation and pipelines.
• Anyone who wants catch-all clarity. Every catch-all domain is explicitly flagged so risky addresses can be segmented before sending.

Who Kaspr Is Best For

• Sales teams who need phone numbers. Kaspr's strongest feature is revealing direct phone numbers on LinkedIn profiles, which supports calling-led outreach that VeriMails does not address.
• Recruiters sourcing on LinkedIn. The Chrome extension surfaces contact details directly on profiles, useful for talent teams building candidate lists.
• European-focused outreach. Reviews suggest Kaspr's phone data is more reliable for European numbers, making it a reasonable fit for EU-centric prospecting.
• Teams already in the Cognism ecosystem. Kaspr is owned by Cognism, so it can be a natural entry point for teams that want LinkedIn-based contact data within that family of tools.

Frequently Asked Questions