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Mailbeam
Spain
What it is
Mailbeam is a real-time email verification API for developers adding address checks to signup flows. It runs eight checks, including 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. The HTTP API can be called without installing an SDK, and integration 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 API servers, databases, and processing are in the EU, using data centers in Germany. Addresses checked in real time are discarded immediately; batch lists and results remain available for download for 72 hours before automatic deletion. The free plan includes 1,000 verifications per month. Paid plans start at €19/mo, and the pricing note lists a 14-day trial. Monthly quotas do not roll over; requests above the Free limit return a 429 error, and paid-plan overages are billed at the plan's overage rate.
For and against
For
- Eight checks cover address quality and risk signals.
- Returns a 0–100 score and machine-readable reason.
- No SDK installation needed for HTTP API calls.
- Real-time verification addresses are discarded immediately.
- Bulk CSV upload and batch API are included on Free.
Against
- Free plan is limited to 1,000 verifications monthly.
- Unused monthly quotas do not roll over.
- Free requests above the limit return a 429 error.
- Batch lists and results are deleted after 72 hours.
The verdict
Mailbeam offers real-time checks and batch verification through an HTTP API, with results designed for programmatic use. Compare monthly quotas and overage terms with expected volume before selecting a plan.
Who it suits
Mailbeam suits developers and teams that want to verify addresses in signup flows or process uploaded lists. Its API examples cover several programming languages, and its service is aimed at European developers and teams.
Plans and prices
Free
1,000 verifications/month · REST API · Bulk CSV upload + batch API · Webhooks
Read 7 Oct 2026 · mailbeam.dev
Starter
10,000 verifications/month · SMTP probing · Typo suggestions · Email support
Read 7 Oct 2026 · mailbeam.dev
Growth
50,000 verifications/month · Async batch endpoint · Priority email support · Catch-all confidence scoring
Read 7 Oct 2026 · mailbeam.dev
Pro
200,000 verifications/month · 12h support response time · Dedicated IP pool · Some features marked Roadmap
Read 7 Oct 2026 · mailbeam.dev
Scale
1,000,000 verifications/month · 4h support response time · Some features marked Roadmap
Read 7 Oct 2026 · mailbeam.dev
Pay-as-you-go
No monthly minimum · Volume tiers apply automatically
Read 7 Oct 2026 · mailbeam.dev
Enterprise
10M+ verifications/month · On-premise deployment option · Custom SLA · 1h support response time
Read 7 Oct 2026 · mailbeam.dev
On the record
- Compliance
- The security page lists GDPR compliance and active EU data residency, while SOC 2 Type II is in progress.mailbeam.dev · read 7 Oct 2026
- Data residency
- Mailbeam says its API servers, databases, and processing run within the EU, using Hetzner data centers in Germany.mailbeam.dev · read 7 Oct 2026
- Data retention
- Real-time verification email addresses are discarded immediately; batch lists and results are retained for 72 hours for download, then deleted automatically.mailbeam.dev · read 7 Oct 2026
- 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.mailbeam.dev · read 7 Oct 2026
- 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.mailbeam.dev · read 7 Oct 2026
- Latency
- Mailbeam says cached and DNS-only lookups resolve in roughly 80ms from EU regions and a full SMTP probe stays under one second.mailbeam.dev · read 7 Oct 2026
- Purpose
- Mailbeam provides a real-time email verification API for developers to use in signup flows.mailbeam.dev · read 7 Oct 2026
- 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.mailbeam.dev · read 7 Oct 2026
- Scoring
- The API returns a 0–100 quality score and a machine-readable reason for its verdict.mailbeam.dev · read 7 Oct 2026
- 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.mailbeam.dev · read 7 Oct 2026
- 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.mailbeam.dev · read 7 Oct 2026
- 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.mailbeam.dev · read 7 Oct 2026
