MailSentinel: Real-time Email Verification & MX Lookup

MailSentinel is a lightweight, high-speed email validation engine. It helps businesses reduce bounce rates and protect their sender reputation by filtering out "garbage" emails at the point of entry. Key Features: Syntax Validation: Comprehensive RegEx check for RFC compliance. MX Record Verification: Confirms the domain is configured to receive mail. High Performance: Optimized for bulk…

2 subscribers
8.6/10 popularity
31 ms avg latency
100% success rate
3 endpoints
The in-depth APIMemo review for this API hasn't been published yet — the data below comes straight from the public marketplace listing.

MailSentinel: Real-time Email Verification & MX Lookup endpoints

MethodEndpointDescription
GET Basic Verification
/verify
Performs a dual-layer check (Syntax + DNS) on a single email address
GET Premium Verification
/verify/deep
Basic verification + Disposable Check (Only for Pro/Ultra tiers)
POST High-Volume Deep Verification
/verify/batch
High-speed batch processing for up to 100 emails per request. Includes deep verification, disposable detection, and priority queueing

MailSentinel: Real-time Email Verification & MX Lookup pricing

PlanPriceRate limitQuotas
BASIC Free 6 / minute
  • Requests: 50 / monthly
PRO $19 / month 50 / minute
  • Requests: 3,000 / monthly (then $0.0100 each)
ULTRA Recommended $59 / month 50 / minute
  • Requests: 12,000 / monthly (then $0.0100 each)
MEGA $149 / month 50 / minute
  • Requests: 50,000 / monthly (then $0.0100 each)

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