Built for Every Email Workflow

Email Verification Use Cases

Q: Can I use the same MailVeri credit balance across all use cases?

Yes. MailVeri uses a single unified pay-as-you-go credit balance across bulk CSV/XLSX web uploads, real-time REST API calls, automation webhooks (Zapier, Make, n8n, Clay), and AI agent MCP tools. Credits start at $0.0002 per email and never expire.

Q: What happens if an email address returns an UNKNOWN status?

MailVeri only deducts credits for definitive verification outcomes (VALID, INVALID, DISPOSABLE, ROLE_ACCOUNT, CATCH_ALL, FULL_INBOX). Any inconclusive or temporary UNKNOWN result is automatically refunded 100% so you never waste budget.

Q: How fast can I verify a large B2B or marketing list?

You can upload CSV, Excel (.xlsx, .xls), or TXT lists containing up to 1,000,000 email addresses per batch. Once completed, download pre-segmented clean lists or receive an automated HMAC-signed webhook notification.

From cleaning 1,000,000-row cold outreach lists to blocking disposable trial signups at registration, see how teams use MailVeri to keep bounce rates strictly under 2% at up to 90% lower cost.

Choose Your Verification Workflow

Email Marketing & Newsletters

Clean subscriber lists before every campaign send

Eliminate hard bounces, inactive mailboxes, and spam traps before launching newsletters or seasonal promotions on Klaviyo, Mailchimp, ActiveCampaign, and HubSpot.

<2% Bounce Rate25% Higher Open RatesSave on ESP Storage

Explore Email Marketing & Newsletters

Cold Email & Outbound Outreach

Protect secondary domains on Instantly, Smartlead & GoHighLevel

Verify scraped B2B prospect exports from Apollo, Clay, and LinkedIn Sales Navigator. Quarantine catch-all and invalid addresses before they burn your warmed sending mailboxes.

<1.5% Hard BouncesZero Domain BurnUp to 90% Cost Savings

Explore Cold Email & Outbound Outreach

B2B Lead Generation & Funnels

Qualify leads at the point of capture

Stop routing typos, fake addresses, and role accounts to your sales reps. Validate leads from Facebook Lead Ads, Typeform, and landing pages in real time via API or Webhooks.

99%+ Valid Leads40% Higher Sales ProductivityInstant CRM Sync

Explore B2B Lead Generation & Funnels

SaaS Signup & Trial Protection

Block disposable emails and free-tier abuse

Prevent burner domains (Mailinator, TempMail, YOPmail, GuerrillaMail) from abusing your free trials, promotional credits, and AI token quotas during account registration.

100K+ Burner Domains Blocked60% Less Trial AbuseClean User Analytics

Explore SaaS Signup & Trial Protection

Developers, APIs & AI Agents (MCP)

REST API, HMAC Webhooks & Model Context Protocol

Integrate single-email verification and 1,000,000-row batch processing into any application or AI coding assistant (Claude Desktop, Cursor, Windsurf) in minutes.

Real-Time REST APINative MCP Server99.9% Uptime SLA

Explore Developers, APIs & AI Agents (MCP)

Why 10,000+ Teams Standardize on MailVeri

Up to 90% Lower Cost

Verify 10,000 emails for $9, 100,000 for $59, or 1,000,000 for $299 (down to $0.0002/email at scale). Compare our rates against 22 legacy verifiers.

99%+ Deliverability Accuracy

Our 9-stage pipeline catches invalid mailboxes, catch-all domains, 100,000+ disposable providers, role accounts, and full inboxes without sending an email.

Zero-Waste Credits

Purchased credits never expire, there are no recurring monthly fees, and any inconclusive unknown verification result is automatically refunded 100%.

Use Case FAQs

Can I use the same MailVeri credit balance across all use cases?