MailRambo vs Hunter
Hunter is a B2B email finder and outreach platform whose Email Verifier is one part of a larger prospecting suite. MailRambo is an email verification API that gives one strict yes/no per address, starting at $5 with 100 free checks every month. Here's how they compare.
Side by side
| MailRambo | Hunter | |
|---|---|---|
| Free tier | 100 verifications every month, API included | 50 credits/month, shared with Finder and Domain Search |
| Entry price | $5/mo for 1,000, or $9 for 2,000 (never expire) | Starter $49/mo for 2,000 credits |
| ~10,000 verifications | $29 for 10,000 (never expire) | Growth $149/mo for 10,000 credits |
| Credit expiry | Pack credits never expire | Subscription credits are monthly |
| Catch-all addresses | Answered as not deliverable (reason: catch_all) | Check their site |
| API answer format | Strict yes/no + reason code | Check their site |
| Free test / sandbox mode | Yes - free mr_test_ keys with canned answers | Check their site |
| Public OpenAPI spec | Yes - public /v1/openapi.json | Check their site |
| Domain auth data (SPF/DKIM/DMARC) | Yes - SPF, DKIM, DMARC, BIMI, PTR via ?detail=full | Check their site |
| Retry-safe batch requests | Yes - Idempotency-Key on batches | Check their site |
| Free instant check for signup forms | Yes - mode=fast: free, under 1s (syntax, typos, MX, disposable) | Check their site |
| Free repeat checks | Yes - same address within 24h is free | Check their site |
Hunter details from their pricing page, checked September 2026. Prices change; confirm on their site.
Why teams choose MailRambo
- Verification-only pricing: 10,000 checks for $29 instead of $149/month.
- Your free credits are for verification only - not shared with finder and domain search.
- Strict yes/no answers built for signup forms and product flows, not just outreach lists.
When Hunter is the better fit
Choose Hunter if you need to find email addresses (not just verify them) and want prospecting and outreach in the same tool.
Switching from Hunter
Point your code at /v1/verify and map Hunter's results to a single boolean:
| Hunter result | MailRambo |
|---|---|
valid / deliverable | deliverable: true |
invalid / undeliverable | false (mailbox_not_found) |
accept_all / risky | false (catch_all) |
disposable | false (disposable) |
unknown | false (unverifiable) |
const res = await fetch("https://www.mailrambo.com/v1/verify", {
method: "POST",
headers: {
Authorization: `Bearer ${process.env.MAILRAMBO_KEY}`,
"Content-Type": "application/json",
},
body: JSON.stringify({ email }),
});
const { deliverable, reason } = await res.json();
if (!deliverable) reject(reason); // "catch_all", "disposable", "mailbox_not_found", ...Build it with a free mr_test_ key first - no credits used. API reference · OpenAPI spec
Frequently asked questions
Is MailRambo cheaper than Hunter?
For most volumes, yes. MailRambo starts at $5/month for 1,000 verifications, and 10,000 costs $29 as a pack that never expires. Check Hunter's pricing page for their current rates; we last checked in September 2026.
How do I migrate from Hunter to MailRambo?
Swap the endpoint and map Hunter's statuses to MailRambo's deliverable true/false. Most integrations take under an hour, and free test keys let you try it without spending credits.
How does MailRambo handle catch-all addresses?
They count as not deliverable, with reason catch_all. Catch-all servers accept every address during the check, so the mailbox can't be confirmed and many of those messages bounce later.
Is there a free plan?
Yes: 100 verifications every month, with full API access and free test keys.
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Run these checks from your code
Verify addresses at signup, clean lists and read SPF/DKIM/DMARC with one API call. 100 free verifications a month, test keys that cost nothing, and the API on every plan.