Mailbeam vs Emailable
An honest comparison of features, pricing, and performance — updated August 2026.
TL;DR — Which should you choose?
Choose Mailbeam if:
- You process EU user data and need guaranteed EU data residency in Frankfurt
- You're embedding verification into a signup flow that needs a synchronous answer
- You want per-verification pricing without credit bundles or add-on upsells
Choose Emailable if:
- Your main job is cleaning marketing lists and you want inbox-placement/deliverability testing in the same tool
- You're US-based and already use Emailable's ESP integrations for campaign hygiene
Why developers look for Emailable alternatives
Emailable (formerly TheChecker) is a US-based email verification service that markets itself on list-cleaning accuracy and deliverability tooling. Alongside verification it sells inbox-placement testing and deliverability monitoring, and it bills from a credit balance with pay-as-you-go and monthly options.. These are the pain points teams cite most often when they move away:
- 1US-hosted processing creates GDPR cross-border transfer obligations for EU companies
- 2Credit-based billing plus separately priced deliverability add-ons make verification cost hard to isolate
- 3Single-email API latency (~250ms) is slow for inline signup validation
- 4Catch-all domains come back as 'risky/unknown' without a confidence score to threshold on
- 5SDK coverage is narrower than a developer-first API and there's no OpenAPI spec
- 6A DPA is provided on request rather than included on every plan by default
What Mailbeam does differently
Mailbeam is a developer-first EU email verification API. This is what changes for teams leaving Emailable:
- EU data residency in Frankfurt with a DPA on every plan — no SCCs to manage
- Synchronous verify built for signup flows, plus an async batch endpoint for existing lists
- Per-verification pricing with no credit bundles or add-on upsells
- A 0–100 quality score with an explainable reason for catch-all domains
- A deterministic sandbox mode today, with typed SDKs and an OpenAPI spec on the roadmap
- A focused verification product without deliverability-suite pricing you may not need
Feature-by-feature comparison
| Feature | Mailbeam | Emailable |
|---|---|---|
| Pricing | ||
| Free tier | 1,000/mo | yes (250 credits) |
| Free tier size | 1,000/month | 250 one-time credits |
| Pricing model | Per-verification | Credits |
| Credits required | No | Yes |
| Deliverability tools as paid add-on | n/a | Yes |
| Price at 50K/month | €49 | ~$130 |
| Price at 1M/month | €499 | ~$1,400 |
| Verification checks | ||
| Syntax validation | Yes | Yes |
| MX records | Yes | Yes |
| SMTP probing | Yes | Yes |
| Disposable detection | 50,000+ domains | Yes |
| Role-based detection | Yes | Yes |
| Catch-all detection | Yes | Yes |
| Quality score (0–100) | 0–100 | partial (state/reason) |
| Explainable reason field | Yes | Partial |
| Typo suggestions | Yes | yes (did-you-mean) |
| API & platform | ||
| Real-time single-address API | Yes | Partial |
| P95 response time | not published yet | ~250ms |
| Batch/bulk verification | Yes | Yes |
| Webhooks | Yes | Yes |
| Official SDKs | Roadmap | partial (JS, PHP, Ruby) |
| OpenAPI specification | Roadmap | No |
| Test / sandbox mode | Yes | Partial |
| Deliverability & scope | ||
| Email verification | yes (focus) | Yes |
| Inbox-placement / seed testing | No | Yes |
| Ongoing deliverability monitoring | No | yes (add-on) |
| Developer-first design | Yes | Partial |
| Compliance & security | ||
| EU data residency | Frankfurt (EU) | No |
| GDPR compliant (native) | Yes | Partial |
| DPA included | yes (every plan) | yes (on request) |
| No US data transfer | Yes | No |
| Server location | Frankfurt, EU | United States |
| Developer experience | ||
| Modern dashboard | Yes | Yes |
| Documentation quality | Excellent | Good |
| TypeScript support | Yes | Partial |
| Error messages | Descriptive + reason code | Status + reason |
| Support | ||
| Free plan support | Community forum | |
| Email support | yes (Starter+) | Yes |
| Priority support | yes (Growth+) | yes (paid) |
| Uptime SLA | Roadmap | 99.9%+ |
Roadmap means we are building it and it is not available yet — not that it is missing from the plan.
Pricing comparison at every volume
| Monthly volume | Mailbeam | Emailable | Saving |
|---|---|---|---|
| 1K / month | €0(Free) | ~$15 | 100% less |
| 10K / month | €19(Starter) | ~$60 | 68% less |
| 50K / month | €49(Growth) | ~$130 | 62% less |
| 200K / month | €149(Pro) | ~$420 | 64% less |
| 1M / month | €499(Scale) | ~$1,400 | 64% less |
Emailable prices are approximate based on public information as of August 2026. Actual prices may vary.
Feature analysis
EU data residency and GDPR
Mailbeam winsEmailable is a US company that processes email addresses on US infrastructure. When an EU SaaS sends user-submitted addresses to a US processor, GDPR requires a valid transfer mechanism (Standard Contractual Clauses) and a signed DPA. Mailbeam stores and processes everything in Frankfurt, Germany — no data leaves the EU, and a DPA is included on every plan by default rather than on request.
Real-time API for signup flows
Mailbeam winsEmailable's roots are in bulk list cleaning, and its single-email API reflects that heritage with latencies commonly in the 200–300ms range. Mailbeam is engineered for inline signup validation: pre-warmed MX caches for common European domains and checks that run in parallel, so a cached or DNS-only lookup comes back in about 80ms. For a user waiting on a form submit, that is the difference between a perceptible pause and instant feedback.
Pricing model
Mailbeam winsEmailable sells credits, and its deliverability features (inbox-placement testing, monitoring) are separate paid products layered on top. That makes the true cost of 'just verification' harder to reason about. Mailbeam charges one unit per verification with no credit bundles, no add-on tiers, and a 20% annual discount — at 50K/month it's roughly €49 versus Emailable's ~$130.
Catch-all scoring you can read
Mailbeam winsEmailable returns a state (deliverable, undeliverable, risky, unknown) and a reason, which is genuinely more informative than a bare status. But for catch-all (accept-all) domains it still hands you a 'risky/unknown' label to interpret yourself. Mailbeam probes the domain with a random address in the same connection to establish that it accepts anything, then says so explicitly with a capped score and a catch_all_unverifiable reason, so you can set one threshold instead of writing manual rules per domain.
Developer experience
Mailbeam winsEmailable offers a handful of client libraries and a clean dashboard, but its SDK coverage is narrower and it doesn't publish an OpenAPI specification. Mailbeam ships a deterministic sandbox mode and machine-readable reason codes so your backend can branch on 'disposable' vs 'mailbox not found' vs 'catch-all we could not verify' rather than a single generic failure. Typed SDKs and an OpenAPI spec are on the roadmap.
Deliverability tooling
Emailable winsThis is where Emailable is genuinely broader. Beyond verification it offers seed/inbox-placement testing and ongoing deliverability monitoring, so an email-marketing team can clean a list and check where campaigns land from one account. Mailbeam deliberately stays focused on verification and does not offer inbox-placement testing. If deliverability monitoring in the same tool matters to you, Emailable's suite is the better fit.
Switching from Emailable to Mailbeam
Most migrations take under an hour. Here's the key code change:
// Before — Emailable
// Emailable (old)
const res = await fetch(
`https://api.emailable.com/v1/verify?email=${email}&api_key=${apiKey}`
);
const { state } = await res.json();
if (state !== "deliverable") return 422;
// After — Mailbeam
// Mailbeam (new)
// No SDK yet — the 12-line wrapper from /docs/quickstart.
import { verifyEmail } from "@/lib/mailbeam";
const { valid, score, reason } = await verifyEmail(email);
if (!valid || score < 60) return 422;Read the full migration guide: Migrating from Emailable →
“We switched from Emailable because we needed real GDPR compliance for our EU users, not just a checkbox. Mailbeam's Frankfurt hosting and DPA made the compliance conversation easy.”
Frequently asked questions
Is Mailbeam as accurate as Emailable?
Both rely on SMTP probing as the core mechanism, so accuracy on standard mailboxes is comparable. The practical difference is catch-all handling: Emailable labels accept-all domains as 'risky' or 'unknown' for you to interpret, while Mailbeam returns a 0–100 confidence score plus a reason so you can accept high-quality corporate catch-alls and challenge the rest.
Does Mailbeam offer inbox-placement or deliverability monitoring like Emailable?
No. Mailbeam is a dedicated verification API and does not provide seed/inbox-placement testing or ongoing deliverability monitoring. If those features are central to your workflow, Emailable's broader suite covers them; many teams keep a deliverability tool and still move verification to Mailbeam for speed and EU residency.
Is Emailable GDPR compliant for EU data?
Emailable states it is GDPR compliant, but it processes data on US infrastructure, so EU companies need Standard Contractual Clauses and a signed DPA to use it lawfully as a processor. Mailbeam processes all data in Frankfurt with a DPA included on every plan, which removes the cross-border transfer question entirely.
How long does it take to migrate from Emailable?
Usually 30–60 minutes. You swap the Emailable verify call for a POST to Mailbeam and map Emailable's `state` string (deliverable/undeliverable/risky/unknown) to Mailbeam's boolean `valid` plus an optional score threshold. The migration guide covers the field mapping.
Start verifying emails — for free
1,000 free verifications per month. No credit card required. Switch from Emailable in under an hour.