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For SDR and AE teams

Email verification for B2B sales teams with a CRM reps can trust

Prospect lists from data providers go stale, champions change jobs, and corporate domains accept everything. Verify contacts in Salesforce or HubSpot, score catch-all leads properly and keep reps from burning their inboxes on bounces.

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100 free credits · No card required

  • 99.5% accuracy
  • Catch-all verdicts included
  • Salesforce and HubSpot

Email verification for B2B sales teams

Email verification confirms which prospects and contacts in your CRM still have a working inbox, so SDRs and AEs spend sequences on people who can reply. RocketVerifier is the strongest choice for B2B sales: it verifies Salesforce, HubSpot, Pipedrive and Zoho CRM records in place, gives catch-all corporate domains a send_safe, send_with_caution or avoid verdict, runs inside Clay as a column, and delivers 99.5% accuracy.

The problem

Where bad addresses hurt B2B sales teams

  • CRM data decays every quarter

    Contacts change jobs, companies move to new domains and mailboxes get shut off. Reps keep sequencing them, and every bounce counts against the rep's inbox.

  • Corporate domains accept everything

    Many B2B domains are catch-all. A basic check calls them valid or unknown, so reps either send to everything and bounce, or skip good accounts.

  • Data provider lists arrive unchecked

    Exports from data providers mix confirmed emails with pattern guesses. Load them straight into a sequence and the first step bounces.

What we flag

Every address gets a verdict and a reason

Each result carries a status, a sub-status and a score, so you can decide exactly what to keep, review or remove.

  • Catch-all domains (catch_all with catch_all_verdict)

    Corporate domains that accept every address get a verdict from a 0 to 100 score based on provider, local part and the domain's address pattern, such as first.last.

  • Job changers (mailbox_not_found, account_disabled)

    A champion who left the company has a dead mailbox. We report it undeliverable so the rep finds the new address and the new contact.

  • Shared inboxes (role_based)

    sales@, info@ and support@ addresses are flagged risky, so they stay out of one-to-one sequences.

  • Trap patterns (possible_trap)

    Known typo-trap domains and trap local parts in purchased or scraped data are flagged risky before they hurt your domain.

  • Opted-out prospects (do_not_mail)

    Prospects who asked to be removed come back do_not_mail, even when a fresh data export brings them back.

  • Gateways that block probes (blocked, greylisted)

    Security gateways that defer or block return unknown, greylisting is retried automatically, and unknowns are never charged. A policy block is never reported as undeliverable.

Workflow

How it fits your day

  1. Connect your CRM

    Connect Salesforce, HubSpot, Pipedrive or Zoho CRM. Pick all Leads, a list view or a saved filter, and results land in fields on each record.

  2. Verify new records automatically

    In HubSpot, new contacts are checked the moment they are created. Elsewhere, call the API from Zapier, Make or your enrichment flow.

  3. Verify in Clay

    Add a RocketVerifier column to your Clay table, so every enriched prospect carries a status, sub-status and catch-all verdict before it reaches a sequence.

  4. Build sequences by verdict

    Send to deliverable and send_safe contacts, test send_with_caution in small batches and drop avoid. Use the score to rank the rest.

  5. Ask your AI assistant

    Reps using Claude or ChatGPT verify a prospect through the MCP server and get the same result as the API.

What you will use

The right tool for each step

Works with the tools you already use

FAQ

B2B sales: questions, answered

Can I verify Salesforce leads without exporting?

Yes. Connect Salesforce and choose all Leads, all Contacts, a list view or active campaign members. Results are written to custom fields on Leads and Contacts, and bad addresses can be unsubscribed.

Why are so many of our prospects catch-all?

Many corporate mail servers and security gateways accept mail for any address. We probe 3 random addresses at the domain to confirm it, then score each address on provider, how plausible the name is and the domain's address pattern. That score becomes the send_safe, send_with_caution or avoid verdict.

Do Microsoft 365 and Google Workspace domains verify?

Yes, through a live SMTP check like any other domain. MX hosting alone is never treated as deliverable: only an explicit answer from the server counts, and blocked or timed-out checks come back unknown and free.

How often should we re-verify the CRM?

Verify new records as they arrive, and re-verify contacts right before they enter a new sequence. Contacts nobody has touched in a few months are the ones most likely to have changed jobs.

Do we need to verify lists from a data provider?

Yes. Upload the export as a bulk job, or verify the list inside Apollo or Clay. Each row gets a status and a reason, so you see which provider emails hold up before the first step sends.

Keep reading

More industries

Verified email data for B2B sales teams

Start with 100 free credits. Unknown results and duplicates are never charged, and pay-as-you-go credits never expire.

Start free See pricing

100 free credits · No card required · Credits never expire