RevenueBase Email Verifier
Verify business emails
before you send.
Check individual emails or entire lists, resolve catch-all uncertainty, and identify invalid addresses before they reach your campaigns, sales workflows, or CRM.
Single verification · bulk lists · catch-all resolution
fig. 01 — Email Verifier workspace
app.revenuebase.com
Trusted by teams that depend
on accurate B2B data
Email Verifier in numbers
97%+
Accuracy
90%
Coverage
1 or all
Single + bulk
8
Detail fields
Email verification
Know what is likely to bounce
before you send.
Bad email data hurts deliverability, wastes outreach, and damages trust in your CRM. RevenueBase Email Verifier checks whether a business email is deliverable and gives your team a clear result before the address enters an active workflow.
Protect campaigns
Remove invalid addresses before campaigns launch.
Reduce avoidable bounces
Reduce avoidable bounces from sales and marketing outreach.
Stop bad data at entry
Check emails before they enter your CRM or product.
Reactivate cleanly
Clean existing lists before using them again.
Single or bulk
Verify one email or clean
an entire list.
Move from raw business emails to clear, usable verification results in four steps.
Add your emails
Enter an individual business email or upload a list for bulk verification.
Run verification
RevenueBase checks deliverability and applies proprietary verification methods, including catch-all resolution.
Review the results
See whether each address is valid, invalid, or unknown, along with available verification context.
Use the clean data
Download your verified list or use the results to decide which records enter your campaigns, CRM, or sales workflows.
Clear results
Make the next decision
without decoding the response.
Every email receives a clear verification status your team can use immediately.
Deliverable · safe to send
The address is deliverable and can be used for outbound sending.
Not deliverable · remove or fix
The address is not deliverable and should be removed or corrected before use.
Unresolved · hold for review
RevenueBase could not determine deliverability with enough confidence to return a valid or invalid result.
Email verifier interface
See individual and bulk verification
in one workspace.
Check a single business email, upload an entire list, review usage, and inspect verification results before data reaches active workflows.
Fewer unknowns
Catch-all does not have to
mean unknown.
Catch-all domains accept messages for any address at the domain, so a standard SMTP check cannot confirm whether a specific mailbox exists. This is especially common at enterprise companies. RevenueBase uses proprietary account-level verification to resolve many catch-all addresses that other verification tools return as unknown.
Account-level verification
Proprietary account-level verification.
Catch-all coverage
Coverage of many catch-all business emails.
Fewer enterprise unknowns
Fewer unresolved results at enterprise domains.
Better send decisions
More confidence when deciding which addresses to use.
More than a status
See the evidence
behind the result.
RevenueBase can return supporting verification details alongside the email status, giving your team and systems more context for each decision.
Pay for verified outcomes
Spend on answers,
not uncertainty.
Email Verifier uses RevenueBase credits across single and bulk workflows. One successful verification uses one credit; unknown or unverifiable responses are not billed.
One credit per verification
A successful email verification uses one credit from the shared RevenueBase balance.
Single or bulk
Apply the commercial model to one-off checks or entire list-cleaning workflows.
Unknowns are not billed
Pay for successful verification outcomes rather than unresolved responses.
$0.0027 per credit
Use the published API credit rate as a predictable unit for verification workflows.
Two ways to verify
Use Email Verifier directly
or connect the API.
Choose the ready-to-use app for human workflows or the API for verification inside forms, products, CRM syncs, and automated systems.
Email Verifier
Check individual addresses and process bulk lists through a ready-to-use application for sales, marketing, and operations teams.
Email Verification API
Verify emails programmatically at the point of entry or process large lists asynchronously.
Use cases
Verify emails wherever
bad data creates risk.
One verification layer for campaigns, prospecting, CRM hygiene, lead capture, and enterprise outreach.
Pre-send list cleaning
Verify campaign and outbound lists before they reach your sending platform.
Sales prospecting
Check prospect emails before representatives add them to sequences or begin outreach.
CRM data quality
Identify invalid and uncertain emails already stored in your CRM.
Lead capture
Verify individual addresses as they enter forms, products, or internal workflows.
Database maintenance
Recheck older business emails before reactivating contacts or reusing dormant lists.
High-value enterprise outreach
Resolve more catch-all addresses at enterprise domains where standard verification often stops at unknown.
Proven in real-world outreach
Verified data changes
what reaches the inbox.
Giant Partners
Giant Partners runs demand generation programs across a portfolio of clients. RevenueBase-verified data helps the agency maintain consistently low bounce rates as the scale its campaigns require.
<2%
Bounce rate
“Sub-2% bounce rates across every client, every campaign.”
Edward Wheels — CEO, Giant PartnersCybermaxx
Cybermaxx needed more accurate, actionable B2B data for its marketing and sales development programs.
<5%
Bounce rate
“Our data is just more accurate, plain and simple.”
Eliot Fogle — Chief Marketing Officer, Cybermaxxfaq
Common questions
RevenueBase Email Verifier is a ready-to-use application for checking whether business email addresses are deliverable. You can verify individual emails or process lists in bulk before using them in campaigns, sales workflows, or your CRM.
RevenueBase delivers 97%+ accuracy on verified results by combining deliverability checks with proprietary verification methods, including account-level verification for catch-all domains.
A catch-all domain accepts messages for any address at the domain, so a standard SMTP check cannot confirm whether a specific mailbox exists. Catch-all domains are especially common at enterprise companies.
Yes. RevenueBase uses proprietary account-level verification to resolve many catch-all addresses that other verification tools return as unknown.
Every email receives a clear status: valid, invalid, or unknown. Where available, RevenueBase also returns supporting details such as confidence, verification time, domain type, MX record, provider, security gateway, and reason.
Yes. Upload a list for bulk verification, review the results and usage, and download the verified list for your campaigns, CRM, or sales workflows.
Yes. The Email Verification API verifies emails programmatically at the point of entry, inside forms, products, and CRM syncs, or processes large lists asynchronously.
Verify before campaigns launch, before prospects enter sequences, as leads are captured, and before reactivating older or dormant lists.
Verify before you send
Keep bad emails out of your next campaign.
Verify individual business emails or entire lists with accurate results, proprietary catch-all resolution, and the context you need to make better send decisions.