Proofy

Paid#19 of 36 in Email Verification ServicesEmail Verification APIs

Proofy: A practical choice for large-file verification without a subscription commitment. Ranked #19 of 36 in Email Verification Services by our editors (6.7/10); pricing: Paid; best for large-file verification on a simple budget.

6.7/10★★★☆☆Editor score

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At a glance

• Editor score
  6.7 / 10
• Pricing
  Paid
• Best for
  Large-file verification on a simple budget
• Free plan
  No
• Paid from
  $5/unit one-time
• Facts checked
  21 Sep 2026

• Where it wins

  • Verifies up to 1 million addresses per file
  • Supports bulk uploads, REST API, and real-time form checks
  • Checks syntax, DNS, MX, SMTP, and mailbox-level signals

• Where it doesn't

  • No free plan is available
  • Monthly package pricing is not published
  • Integration data is not provided

Our verdict on Proofy

Proofy is an email verification service for marketers, developers, and teams validating individual addresses or cleaning large lists. It supports CSV and TXT uploads, REST API workflows, batch processing, real-time form validation through a JavaScript widget, and downloadable verification exports. Verification covers syntax, domains, MX records, SMTP responses, disposable and temporary addresses, catch-all and accept-all behavior, and role-based addresses. It can also classify results as valid, invalid, risky, unknown, disposable, catch-all, or role-based without sending messages to the addresses being checked.

The main pricing entry point is the Trial plan: a $5 one-time package with 5,000 verifier checks for new users and no subscription required. The published plans also describe subscription options, while monthly package pricing is not published. A credit rollover is included in the category specifications. This structure suits teams that want to start with a defined one-time allowance, but buyers seeking a free plan or clearly stated monthly costs should consider alternatives.

Proofy's strongest fit is large-file and multi-channel verification. A single file can contain up to 1 million addresses, while the REST API supports single, batch, and file verification. The JavaScript widget adds real-time checks to forms, and customizable exports help tailor downloaded results. These capabilities make Proofy a practical choice for teams combining list cleaning with application or workflow validation. It is less suitable for buyers prioritizing a free entry tier or documented integrations, since the available platform options are web and API and integration data is not provided.

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Proofy pricing

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Proofy fact sheet

Alternatives to Proofy

• ZeroBounceA broad verification suite covering list cleaning, APIs, monitoring, and deliverability tools.8.9
• QQuickEmailVerificationA flexible verifier with free credits, broad file support, API access, and pay-as-you-go pricing.8.7
• BouncerA flexible email verification service with non-expiring credits, APIs, and broad integrations.8.5

See all Proofy alternatives →

Featured on iTechGuides

Proofy is listed in our Email Verification Services directory. Add the badge to your site — it links back to this page.

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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Last updated 7 Oct 2026 · How we research and update