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Mailbeam

mailbeam.dev

From €19/mo Free plan WebAPI
Visit mailbeam.dev
Spec score 7.9 #11 of 31 in Email Verification APIs

What it is

Mailbeam is a real-time email verification API for developers adding address checks to signup flows. It runs eight checks, covering syntax, MX records, SMTP existence, disposable and role-based addresses, free providers, catch-all detection, and explainable scoring. Results include a quality score from 0 to 100 and a machine-readable reason. Its HTTP API does not require an installed SDK, and examples are provided for Node.js, Python, PHP, Ruby, and Go. Mailbeam says cached and DNS-only lookups take roughly 80ms from EU regions, while a full SMTP probe stays under one second. Its servers, databases, and processing are in the EU, with data centers in Germany. Real-time addresses are discarded immediately; batch lists and results are deleted after 72 hours. The Free plan includes 1,000 verifications per month; paid plans start at €19/mo, and a 14-day trial is listed. Monthly quotas do not roll over, and requests beyond the Free quota return a 429 error. Mailbeam is built by Spain-based software studio Sopa Lab for European developers and teams.

Spec sheet

Purpose
Mailbeam provides a real-time email verification API for developers to use in signup flows.Read 7 Oct 2026 · mailbeam.dev
Integrations
The homepage provides integration examples for Node.js, Python, PHP, Ruby, and Go, and says no SDK needs to be installed to call its HTTP API.Read 7 Oct 2026 · mailbeam.dev
Compliance
The security page lists GDPR compliance and active EU data residency, while SOC 2 Type II is in progress.Read 7 Oct 2026 · mailbeam.dev
Support
The pricing page lists community support on Free, email support on Starter, priority email support on Growth, and response-time targets for higher plans.Read 7 Oct 2026 · mailbeam.dev
Headquarters
SpainRead 28 Sep 2026 · mailbeam.dev
Data residency
Mailbeam says its API servers, databases, and processing run within the EU, using Hetzner data centers in Germany.Read 7 Oct 2026 · mailbeam.dev
Data retention
Real-time verification email addresses are discarded immediately; batch lists and results are retained for 72 hours for download, then deleted automatically.Read 7 Oct 2026 · mailbeam.dev
Encryption
The security page states that API traffic uses TLS 1.3 with TLS 1.2 minimum, databases use AES-256 encryption, API keys are hashed with bcrypt, and passwords with Argon2id.Read 7 Oct 2026 · mailbeam.dev
Latency
Mailbeam says cached and DNS-only lookups resolve in roughly 80ms from EU regions and a full SMTP probe stays under one second.Read 7 Oct 2026 · mailbeam.dev
Quota limits
Monthly verification quotas do not roll over; Free requests above 1,000 return a 429 error, and paid-plan overages are billed at the plan's overage rate.Read 7 Oct 2026 · mailbeam.dev
Scoring
The API returns a 0–100 quality score and a machine-readable reason for its verdict.Read 7 Oct 2026 · mailbeam.dev
Verification checks
The API runs eight checks, including syntax, MX records, SMTP existence, disposable and role-based addresses, free providers, catch-all detection, and explainable scoring.Read 7 Oct 2026 · mailbeam.dev
Who it serves
Mailbeam says it is built by Spain-based software studio Sopa Lab for European developers and teams, from solo founders to enterprise teams.Read 7 Oct 2026 · mailbeam.dev

Plans and prices

Free Free €0/mo 1,000 verifications/month · REST API · Bulk CSV upload + batch API · Webhooks · Community support Read 7 Oct 2026 · mailbeam.dev
Starter €19 a month €19/mo 10,000 verifications/month · SMTP probing · Typo suggestions · Email support Read 7 Oct 2026 · mailbeam.dev
Growth €49 a month €49/mo 50,000 verifications/month · Async batch endpoint · Priority email support · Catch-all confidence scoring Read 7 Oct 2026 · mailbeam.dev
Pro €149 a month €149/mo 200,000 verifications/month · 12h support response time · Dedicated IP pool · Some features marked Roadmap Read 7 Oct 2026 · mailbeam.dev
Scale €499 a month €499/mo 1,000,000 verifications/month · 4h support response time · Some features marked Roadmap Read 7 Oct 2026 · mailbeam.dev
Enterprise Priced on request Custom 10M+ verifications/month · On-premise deployment option · Custom SLA · 1h support response time Read 7 Oct 2026 · mailbeam.dev
Pay-as-you-go Price not published €0.008 per verification up to 10K monthly volume; €0.005 at 10K–100K; €0.002 at 100K–1M; custom above 1M No monthly minimum · Volume tiers apply automatically Read 7 Oct 2026 · mailbeam.dev

Every Mailbeam plan and price →

Strong points and limits

Strong points

  • Eight address checks with explainable scoring
  • Returns a 0–100 quality score
  • HTTP API works without an installed SDK
  • Real-time addresses are discarded immediately
  • EU-based processing and data centers in Germany

Limits

  • Free plan is limited to 1,000 monthly verifications
  • Monthly quotas do not roll over
  • Over-quota Free requests return a 429 error
  • Paid plans start at €19/mo

Who it suits

Mailbeam suits developers and teams who need email checks in signup flows or through a bulk upload. Its API examples and EU data residency may matter to teams choosing how to integrate and handle verification data.

Verdict

Mailbeam provides verification results and reasons through an API, with bulk processing and language examples for integration. Account for monthly quota limits and the different retention periods for real-time and batch data.

Where Specifiction places it

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