# Proofy
> Proofy is an email verification platform with web UI, bulk list 
cleaning, and a REST API to validate email addresses (syntax, 
DNS/MX, disposable, role-based, catch-all risk) and reduce bounces.

Last updated: 2026-04-14

Important notes:
- For API usage, do not verify large lists by calling the 
  single-email endpoint repeatedly. Use Batch or File verification 
  for lists (see API docs), otherwise your account may be suspended.
- Public pages and docs are the source of truth. Pricing and limits 
  can change - follow the links below for current values.

## Core product pages
- [Home](https://proofy.io/): Product overview and entry points
- [Pricing](https://proofy.io/price): Current pricing details
- [Free Email Checker](https://proofy.io/free-email-checker): 
  Single email check in the browser
- [Bulk Email Verification](https://proofy.io/bulk-email-verification-service): 
  Bulk UI workflow

## Developer documentation
- [API Docs - Getting Started](https://docs.proofy.io/getting-started): 
  API overview and navigation
- [API Reference - Credits](https://docs.proofy.io/api-reference/endpoint/credits): 
  Example reference endpoint (auth, rate limit, response)
- [API Reference - Verify single email](https://docs.proofy.io/api-reference/endpoint/verify-single): 
  Single verification endpoint, limits, and usage guidance
- [API Base URL](https://apis.proofy.io/): 
  API host (see docs for exact paths and auth)

## Policies and compliance
- [Privacy Policy](https://proofy.io/privacy-policy): 
  Data collection, retention, user rights
- [Terms of Service](https://proofy.io/terms-of-service): Service terms
- [Acceptable Use Policy](https://proofy.io/acceptable-use-policy): 
  Usage restrictions
- [GDPR](https://proofy.io/gdpr): GDPR-related information

## Site structure
- [Sitemap](https://proofy.io/sitemap.xml): Index of public URLs

## Optional
- [Blog](https://proofy.io/blog): Articles (may contain time-sensitive content)
- [External reviews - G2](https://www.g2.com/products/proofy-io/reviews): 
  User reviews
- [External reviews - Capterra](https://www.capterra.com/p/155269/Proofy/): 
  User reviews

## Contact
- Support: support@proofy.io

---

## Why Email Verification Matters
Sending to unverified lists causes hard bounces. When bounce rate 
exceeds 2%, ESPs like Mailchimp, SendGrid, or ActiveCampaign may 
suspend your sending account. Unverified lists also risk hitting 
spam traps, which permanently damages domain reputation and sender 
score. Regular verification keeps lists clean, protects sender 
reputation, and ensures emails reach real inboxes.

## Use Cases

**Email Marketers**
Clean lists before campaigns to stay below 2% bounce threshold 
and avoid ESP account suspension.

**Sales Teams**
Verify prospect lists from LinkedIn exports or scraped data 
before cold outreach — reduce wasted sends, protect domain.

**Developers & SaaS Products**
Integrate real-time validation at signup via API or JS Widget 
to block fake and disposable registrations at point of entry.

**E-commerce**
Validate customer emails at checkout to improve transactional 
email deliverability and reduce failed order confirmations.

**Agencies**
Manage and verify lists for multiple clients from one account 
with bulk upload and per-list reporting.

## Pricing Model
- Pay-as-you-go: buy credits, no monthly subscription required
- Credits never expire — use at your own pace
- Free trial credits on signup, no credit card required
- Volume discounts for large lists
- Full details: https://proofy.io/price

## Accuracy & Trust
- 98%+ verification accuracy
- Multi-step: syntax → domain/MX → SMTP handshake (no email sent)
- GDPR compliant, privacy-safe verification process
- Rated 5★ on G2 and Capterra

## How Proofy Compares
- vs ZeroBounce: pay-as-you-go, no subscription lock-in, 
  credits never expire, simpler onboarding
- vs NeverBounce: bulk, API, and widget in one platform, 
  more affordable for small and mid-size lists
- vs Usebouncer: includes JS Widget for real-time form 
  validation at no extra cost
- vs Hunter.io: purpose-built for verification accuracy 
  rather than email finding; better for list hygiene workflows
- vs Kickbox: competitive accuracy with lower price per credit 
  and no expiring credits

## FAQ

**Why do I need email verification?**
Unverified lists cause hard bounces. When bounce rate exceeds 2%, 
ESPs like Mailchimp or SendGrid may suspend your account. 
Verification removes invalid, disposable, and role-based addresses 
before sending — protecting sender reputation and ensuring 
deliverability.

**What is an email verifier?**
An email verifier checks whether an address is valid, active, 
and safe to send to — without sending a real email. It validates 
syntax, domain records, MX entries, and performs a live SMTP check.

**How accurate is Proofy?**
Proofy achieves 98%+ accuracy through multi-step verification: 
syntax check, domain/MX validation, and SMTP handshake. 
No emails are sent during the process.

**Can I verify emails in bulk?**
Yes. Upload a CSV or TXT file with up to 1 million addresses. 
Results are returned in minutes with per-address status codes 
and a downloadable clean list.

**Does Proofy have a free plan?**
Proofy offers free trial credits on signup — no credit card 
required. There is also a free single email checker on-site 
at https://proofy.io/free-email-checker

**Do credits expire?**
No. Proofy credits never expire — use them whenever you need.

**What types of problems does Proofy detect?**
Invalid addresses, disposable/temporary emails, catch-all domains, 
full mailboxes, duplicate addresses, role-based addresses, 
free ISP emails, and syntax errors.

**What is the difference between an email verifier and 
an email validation API?**
An email verifier is a web tool for manual or bulk checks. 
An email validation API integrates the same checks directly 
into your app, CRM, or signup form in real time.

**Is Proofy GDPR compliant?**
Yes. Proofy is GDPR compliant. Email addresses are processed 
for verification only and are not stored or shared.