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Mailcheck.ai

● Identity checked

Code · Vendor site 2026-10-04

UserCheck (formerly Mailcheck) is an email validation API that blocks disposable and relay addresses during signup. It advertises real-time disposable detection, forwarding-domain checks, and MX validation to reduce fake account creation for SaaS products.

Updated 2026-10-04View sources
Official website
Category
Code
Free access
Homepage CTA offers sign up for free with no credit card required; public USD plan table was not available at /pricing.
API access
Marketing highlights a REST email validation API with disposable and relay detection endpoints.

Is Mailcheck.ai right for you?

A good fit for

SaaS teams preventing spam signups from throwaway or masked email addresses.

Before you choose

Prices and plan limits were not confirmed from the vendor; check their site before buying.

Block fake signup emails

UserCheck markets an API-first service to stop disposable and relay emails so product teams spend less time cleaning fraudulent accounts.

What it can do

Features & capabilities

Unknown is different from unavailable. Each fact carries its own evidence.

CapabilityValueEvidenceChecked
Disposable detectionHomepage claims always up-to-date disposable email provider detection.Facts sourced2026-10-04
Relay detectionCopy describes identifying email forwarding and relay domains masking real addresses.Facts sourced2026-10-04
MX validationFeature list includes MX record validation in real time.Facts sourced2026-10-04

Understand the total cost

Mailcheck.ai pricing & plans

Pricing

Not listed

Official monthly price not confirmed

API
Marketing highlights a REST email validation API with disposable and relay detection endpoints.
Explore pricing & history

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The practical questions

Frequently asked questions

What is Mailcheck.ai used for?

UserCheck (formerly Mailcheck) is an email validation API that blocks disposable and relay addresses during signup. It advertises real-time disposable detection, forwarding-domain checks, and MX validation to reduce fake account creation for SaaS products.

Does Mailcheck.ai have a free plan?

Homepage CTA offers sign up for free with no credit card required; public USD plan table was not available at /pricing.. This record does not confirm an ongoing free plan.

How much does Mailcheck.ai cost?

A listed monthly price has not been confirmed. See the plan cards for entitlements, billing commitments and seat minimums.

Can I use Mailcheck.ai through an API?

Marketing highlights a REST email validation API with disposable and relay detection endpoints.. API access and subscription access may have different terms; consult the linked sources.

What should I check before choosing it?

Prices and plan limits were not confirmed from the vendor; check their site before buying.

Price history

No retained pricing changes yet. A current price alone does not establish a historical trend.

How this profile is supported

Facts apply to the named version and check date. Send a sourced correction if something changed.