Verify Thousands of Emails in Minutes
Stop Guessing. Start Sending to Real Inboxes
Upload your list and ReachStream Email Verifier flags every invalid, risky, disposable, and catch-all address before it can hurt your sender score. 99.8% accuracy. Results in seconds, not days.
- No Credit Card Required
- 100 Free Verification Credits
- 99.8% Accuracy
- Enterprise Ready
Upload Once. Clean Every Email
One upload catches everything: invalid syntax, dead domains, disposable inboxes, and catch-all risk — so every list you send is deliverable, not just downloaded.
Remove Invalid Emails
Malformed and dead addresses get flagged before they touch your sender score. Up to 40% of lists carry hidden dead weight.
Invalid
Up to 40% of lists contain invalid emails
Detect Catch-All Addresses
Catch-all domains accept everything and tell you nothing. We flag them instantly so you skip the silent bounces.
Catch-all
Flags catch-all domains instantly
Protect Sender Reputation
One bad send can tank your domain’s reputation for months. We keep bounce rates under 2%, so inbox providers keep trusting you.
Protected
Up to 40% of lists contain invalid emails
Improve Deliverability
Clean lists don’t just bounce less — they land more. Verified lists see up to 25% better inbox placement.
Delivered
Boosts inbox placement by 25%
- Every new account starts with 100 free verification credits — no credit card required.
99.8%
Verification Accuracy
+0.3% this quarter
400M+
Emails Verified
Growing every day
1,000+
Businesses Trust ReachStream Email Verifier
+18% YoY
ReachStream Email Verifier by the Numbers
Numbers only matter if they hold up at scale. Here’s ours.
4.8/5 rating on G2 | GDPR Compliant
Trusted by Modern Sales & Marketing Teams
Verification accuracy
99.8%
+0.3%
Up to 99.8%
BUSINESSES SERVED
1,000
Growing
Over 1,000 companies
Security certifications
ISO 27001:2022
Globally Known
GDPR, CCPA, SOC 2, PIPEDA, GPRA
VERIFICATION ENGINE
Multi-Layer Verification Engine
Syntax, domain, mailbox, and behavioral checks run together — not in isolation — so ReachStream Email Verifier catches risky sends single-pass tools miss.
99.8%
accuracy across every check, every time.
Real-Time REST API
Verify at the point of capture. Call the API, get a status back in under 200ms, and stop bad emails before they ever hit your database.
REST · Webhooks · < 200ms
Why Choose ReachStream Email Verifier?
One job, done right: tell you exactly which emails are safe to send to — fast, accurate, and built to scale with your list.
Multi-Layer Verification Engine
No exports, no CSV shuffling. Verify inside HubSpot or Salesforce directly, or connect the REST API to any other tool in your stack.
REST API
HubSpot
Salesforce
Enterprise-Grade Security
Data encrypted in transit and at rest. Access locked down at the workspace level. Because “trust us” isn’t a security policy.
ISO 27001:2022
SOC 2
GDPR
CCPA
PIPEDA
DPDPA
Built for Teams
Shared visibility into list health, verification history, and exports — so your whole team works off the same clean data, not five different versions of it.
8 teammates active
Clean Your Email List in Minutes
Four steps. No learning curve.
Upload Your CSV
Drag, drop, done. Any size, any format, up to 25,000 emails per batch.
Verify Every Email
Multi-layer checks run automatically the moment your file lands — no configuration required.
Review Detailed Results
See a full breakdown by status — Valid, Invalid, Risky, Catch-All, Unknown, Do Not Mail — before you export a single contact.
Download Your Clean List
One click. A ready-to-send list, stripped of everything that would’ve hurt your next campaign.
Ready to Clean Your Email Lists?
Every send is only as good as the list behind it. Verify yours before it costs you deliverability, reputation, or revenue.
- 100 Free Verification Credits
- No Credit Card Required
- Setup in Minutes
- Trusted by Growing Businesses
Frequently Asked Questions
Straight answers about verifying with ReachStream Email Verifier. Still curious? Our team is one message away.
1. How fast is the bulk email verifier?
Real time. Most bulk jobs process in seconds, not hours — built for lead forms, CRM workflows, and outbound prospecting alike.
2. Do you store the emails I verify?
No. We verify each address and return your results; we don’t hold onto your list or use it for anything beyond the check you asked for.
3. What's the difference between catch-all and valid emails?
A valid result means the SMTP handshake got a positive response (250 OK) for that exact mailbox, confirming it exists.
A catch-all result means the domain accepts mail for any address, real or not, so it returns the same positive response either way. The check can’t confirm that specific mailbox, only that the domain is live, which is why catch-all gets flagged separately instead of marked valid.
4. Can I verify emails in bulk?
Yes, up to 25,000 emails per batch upload, with real-time status on every check as it runs. [Confirm current batch limit before publishing.]
5. Which CRMs and tools does it integrate with?
ReachStream Email Verifier connects natively with HubSpot and Salesforce, plus a REST API for verifying emails inside any other tool in your stack.
6. Why verify emails before sending campaigns?
Because one bad send can undo months of sender reputation. Verifying first keeps bounce rates low and your domain trusted by inbox providers.
7. Is ReachStream Email Verifier secure and compliant?
Yes — on both counts. Every email is encrypted in transit and at rest, and access is locked down at the workspace level. ReachStream Email Verifier is ISO 27001:2022 certified and compliant with SOC 2, GDPR, CCPA, PIPEDA, and DPDPA — so your data stays protected wherever your business operates.