OrbiSearch

Comparison

OrbiSearch vs ZeroBounce

ZeroBounce is a full-suite deliverability platform. OrbiSearch is a dedicated email verification service that resolves catch-all emails ZeroBounce simply flags as "accept_all".

The catch-all problem

30-50% of B2B email lists contain catch-all domains. ZeroBounce and OrbiSearch handle them very differently.

OrbiSearch

Verifies catch-all emails

Uses proprietary dual-layer mailbox detection to determine whether individual mailboxes exist on catch-all domains. Returns a definitive deliverable or undeliverable result in seconds, without sending any emails.

Resolves 59% more catch-all emails than ZeroBounce

ZeroBounce

Flags catch-all emails

Returns an "accept_all" status for catch-all domains without verifying individual mailboxes. In independent testing, fictional email addresses were marked as "valid" on catch-all domains because the server accepts all mail.

Optional Verify+ add-on takes up to 48 hours and sends test emails

Catch-all benchmark

2,451 confirmed catch-all emails from a real cold outreach campaign, tested through both services.

OrbiSearch

59%

more catch-all emails resolved

ZeroBounce

accept_all

flags without resolving

Based on 2,451 catch-all emails from a real cold outreach campaign (October 2025).

Pricing comparison

OrbiSearch is up to 91% cheaper than ZeroBounce for email verification.

EmailsZeroBounceOrbiSearchYou Save
2,000$39$3023%
5,000$69$3943%
10,000$129$3077%
100,000$649$10384%
500,000$2,199$20791%
1,000,000$3,199$31190%
5,000,000Custom$1,151-
10,000,000Custom$2,023-

Both services offer pay-as-you-go pricing with credits that never expire. ZeroBounce also offers a $99/mo subscription (ZeroBounce ONE) with bundled features. Prices shown are pay-as-you-go.

Validating millions of emails?

OrbiSearch offers private dedicated infrastructure with white glove support for customers on the 5M and 10M packs. No queues, no file splitting, and we handle data cleaning and quality monitoring.

Feature comparison

ZeroBounce offers a broader suite of deliverability tools. OrbiSearch focuses on verification accuracy, especially for catch-all and SEG-protected emails.

FeatureOrbiSearchZeroBounce
Standard email verification
Catch-all email resolution
Flags only
SEG-protected email verification
Greylisted email resolution
Bulk CSV verification
API access
Email finder
Email warmup
Inbox placement testing
Blacklist monitoring
Activity data / scoring
Pay-as-you-go (no subscription)
Credits never expire
Free validations on signup
500
100/mo
Private dedicated infrastructure

Summary

Choose OrbiSearch if you need:

  • Catch-all emails actually verified, not just flagged
  • SEG-protected and greylisted email resolution
  • Up to 91% lower cost for email verification
  • Results in seconds, not 48 hours
  • Private infrastructure for large-scale validation

Choose ZeroBounce if you need:

  • A full deliverability suite (warmup, inbox testing, blacklist monitoring)
  • Email finder and activity data scoring
  • 45+ native integrations (Mailchimp, HubSpot, etc.)
  • An established platform with 300,000+ customers

Frequently Asked Questions

Does ZeroBounce verify catch-all emails?

No. ZeroBounce flags catch-all emails with an 'accept_all' status but does not verify whether individual mailboxes exist. In independent testing, fictional email addresses like [email protected] were marked as 'valid' on catch-all domains. OrbiSearch uses proprietary dual-layer mailbox detection to verify catch-all emails in real-time, resolving 59% more catch-all emails than ZeroBounce.

What about ZeroBounce's AI scoring for catch-all emails?

ZeroBounce offers an AI-based email score (0-10) for catch-all emails at additional credit cost. Independent testing showed this only marginally improved detection (74% vs 70% real contacts) while costing 44% more credits. It is a probabilistic estimate, not verification.

What about ZeroBounce Verify+ for catch-all emails?

Verify+ is ZeroBounce's premium catch-all add-on that sends test emails and monitors bounce responses. It can take up to 48 hours for results and independent testing showed a 33.1% false positive rate because enterprise systems quarantine test messages rather than bouncing them. OrbiSearch never sends actual emails and returns results in seconds.

Is OrbiSearch cheaper than ZeroBounce?

Yes, significantly. At 100,000 emails, OrbiSearch costs $103 compared to ZeroBounce's $649 (84% savings). At 1,000,000 emails, OrbiSearch costs $311 compared to $3,199 (90% savings). Both services offer pay-as-you-go pricing with credits that never expire.

Does ZeroBounce offer features OrbiSearch doesn't?

Yes. ZeroBounce is a broader deliverability platform that includes email warmup, inbox placement testing, blacklist monitoring, email finder, and activity data scoring. If you need a full deliverability suite, ZeroBounce offers more tools. If you need accurate catch-all verification, OrbiSearch is purpose-built for that.

Why is there such a big price difference?

ZeroBounce prices reflect a full-suite deliverability platform with 300,000+ customers and extensive infrastructure. OrbiSearch is focused purely on email verification, allowing us to offer significantly lower per-email pricing. If you only need verification (not warmup, scoring, or inbox testing), you are paying for features you do not use with ZeroBounce.

Also compare OrbiSearch with:

NeverBounce|MillionVerifier|BounceBan

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