Proofy

Name: Proofy
Price: 5 USD

Free plan APIWeb

What Proofy is

Proofy is a paid web and API service that checks email addresses before sending and labels results such as invalid, risky, disposable, catch-all, or role-based. A free checker verifies one address without sign-up and returns a status. For bulk work, users upload CSV or TXT files, receive segmented results, and can download them; files may contain up to 1 million addresses and be 65 MB. Checks use syntax, domain and MX validation, SMTP and mailbox signals, plus disposable, catch-all, and role-based detection. The REST API handles real-time single checks and asynchronous batches, returning structured JSON, while webhooks can deliver bulk results. Proofy says it evaluates technical signals without sending a real email. Valid and Invalid results are designed for up to 99% accuracy, but catch-all or restricted servers may produce Risky or Unknown. Uploaded files can be deleted manually and are removed automatically after 60 days. Pricing starts at $5, paid once for the Trial plan, which provides 5,000 credits; credits never expire, and duplicates or Unknown results are not charged.

Who it suits

Proofy suits email marketers, high-traffic websites, and companies validating CRM or contact data. It supports browser, API, bulk-upload, and real-time form workflows.

What it does well

Bulk files support up to 1 million addresses
REST API supports real-time and batch checks
Disposable detection included
Credits roll over
Free single-address checker

What to know first

Paid service
No free trial
Catch-all results may be Risky or Unknown
Bulk files are removed after 60 days

Plans

Plan	Billed and limits	Price
Trial	5,000 verifier checks; for new users · 5,000 verification credits · credits never expire · Unknown results and duplicates not charged	$5, paid once

As proofy.io lists them, read 9 Oct 2026. The maker's own page has the final word.

Verdict

Proofy combines one-off checks, bulk verification, API workflows, and form integrations. Its technical signals and stated accuracy target are useful, while uncertain server responses can still require review.

Facts from Proofy's own pages

Accuracy and uncertainty: Proofy says conclusive Valid and Invalid results are designed for up to 99% accuracy, while catch-all or restricted servers may return Risky or Unknown. · proofy.io, 9 Oct 2026
API: Proofy offers a REST API for real-time single-address checks and asynchronous batch workflows, returning structured JSON statuses. · proofy.io, 9 Oct 2026
Bulk limits: A bulk file can be up to 65 MB and contain up to 1 million addresses. · proofy.io, 9 Oct 2026
Bulk verification: Users can upload CSV or TXT files for bulk verification and download segmented results. · proofy.io, 9 Oct 2026
Data retention: Uploaded bulk files can be manually deleted from the dashboard and are automatically removed after 60 days. · proofy.io, 9 Oct 2026
Free checker: The Free Email Checker checks one address without sign-up and returns a verification status. · proofy.io, 9 Oct 2026
GDPR: Proofy describes itself as GDPR ready and says customers can request more information about its Security Policy and obtain a Data Protection Agreement. · proofy.io, 9 Oct 2026
Headquarters: San Francisco, California, United States · proofy.io, 28 Sept 2026
Integrations: The API is described for use with forms, apps, CRMs, and automated workflows; bulk results are also available through webhooks. · proofy.io, 9 Oct 2026
Privacy and security: Proofy's privacy policy says its servers are in the US and describes SSL logging, encrypted passwords, firewalls, and intrusion-detection systems. · proofy.io, 9 Oct 2026
Product: Proofy checks email addresses before sending and classifies invalid, risky, disposable, catch-all, and role-based addresses. · proofy.io, 9 Oct 2026
Support: Proofy lists email support at [email protected] and says enterprise clients can receive dedicated support. · proofy.io, 9 Oct 2026
Verification method: Proofy says it evaluates technical signals without sending a real email to the checked address. · proofy.io, 9 Oct 2026
Verification signals: Checks include syntax, domain and MX validation, SMTP and mailbox-level signals, disposable detection, catch-all detection, and role-based detection. · proofy.io, 9 Oct 2026
Who it serves: Proofy describes API workflows for email marketers, high-traffic websites, and companies validating CRM records and contact data. · proofy.io, 9 Oct 2026