Apollo email verifier: check an Apollo export before you send
To verify Apollo emails, export the contacts with the Email Status column and drop the CSV here. The checker counts each status, flags bad syntax, duplicates, typo, dead and disposable domains, and runs a live mailbox check on 10 addresses, rows not marked Verified first, because those are the ones Apollo itself is least sure of.
By SimpleVerifier Team · Last updated
How do I verify emails from an Apollo export?
- In Apollo, export the contacts to CSV and include the
Email Statusfield (andPrimary email last verified atif you have it). - Drop the CSV in and press Check the export. The
Emailcolumn and the status column are found by their headers and contents. - Read the status counts: each status is marked "Checked by the source" (Verified) or "Check first" (everything else).
- Download the clean list with every Apollo column kept, and the flagged rows.
- The live mailbox check takes the unverified rows first. Sign in with Google to check the rest with 100 free email checks.
Does Apollo verify emails?
Yes, for the addresses it marks Verified, and with caveats it states itself. Apollo's Email Status Overview calls Verified "a fully confirmed, valid email address" and says Unverified covers emails it "was unable to verify" or has "low confidence" in, adding: "Only use unverified emails as an infrequent last resort." User managed rows are your own uploads, about which Apollo makes no claim.
A status is also a snapshot. It reflects Apollo's last check, and people change jobs between that check and your send. Our working rule, explained in should you re-verify an Apollo export: re-check everything not Verified, and Verified rows that are months old or going to a new sending domain.
What does each Apollo email status mean for sending?
Treat Verified as "probably fine today", Unverified and User managed as "check before sending", Update required as "the person may have left; enrich or check", Unavailable as "no address to send to", and Catch-all as "the domain accepts every address, so no checker can confirm one". The checker lists every status value in your file with its count, so you see the split before deciding.
Apollo's own export guide lists Email status, Primary email catch-all status and Primary email last verified at among the available fields; they're not always selected by default, so tick them when you export (export contacts to a CSV).
Why does my verifier mark Apollo verified emails as risky?
Most often because the domain is catch-all: the company's mail server accepts any address, so a second verifier can't confirm the person either and returns risky. It can also be a security gateway in front of the mailbox, or a Microsoft or Apple consumer address, which our checker doesn't probe and reports as risky by design.
Risky means unconfirmed, not bad. Send those rows in a small separate batch, or hold them back, rather than mixing them into your first send from a new domain. The bulk catch-all checker shows which domains in the export accept everything.
Who uses this tool, and for what?
- SDRs
- Check a fresh Apollo pull before loading it into a sequence, with the unverified rows checked first instead of mixed in.
- Agencies
- Re-check a client's saved Apollo lists that are months old before a campaign, without spending credits re-enriching every row.
- Founders
- Sanity-check a first outbound list from Apollo before it goes out from a new domain, where early bounces hurt most.
What can’t this tool tell you?
- This reads an exported CSV; it doesn't connect to Apollo or change statuses there.
- Apollo's status values are shown as they appear in your file; only Verified counts as Apollo's own yes here.
- Catch-all domains can't be confirmed by any mailbox check, including ours.
- The browser check covers the first 5,000 rows; the free checks on your dashboard take the whole file.
Common questions
- Does Apollo verify emails?
- Apollo marks addresses it has confirmed as Verified and says unverified emails should only be used as an infrequent last resort. The status reflects Apollo's last check, so older rows and anything not Verified are worth re-checking before a send.
- How does Apollo verify emails?
- Apollo's Email Status Overview explains what each status means. Whatever the method, a status records Apollo's confidence at its last check, so a fresh mailbox check is the way to know where an address stands today.
- How to verify emails in Apollo?
- Apollo re-verifies some contacts itself. To check an export independently, include the Email Status column in the CSV and run it through a verifier; here the rows not marked Verified are checked first.
- What is Apollo email status?
- A field on each contact saying how confident Apollo is in the address: Verified, Unverified, Update required, Unavailable, User managed or Catch-all, per Apollo's Email Status Overview.
Sources
A tidy list can still be full of dead addresses.
Extracting, deduplicating and syntax checks all work on the text of an address. None of them can tell whether the mailbox exists. Only the server that hosts it can answer that, through an SMTP check, and that is what the paid product does.
- Upload the cleaned file as it is: CSVs up to 100,000 rows
- A real SMTP mailbox check on every row, with catch-all detection
- Small list? Starter at $9/mo covers 2,500 emails a month, cancel anytime
One plan, cancel anytime, no contract. Sign in with Google and your first 100 email checks are free, no card. The free tools stay free either way.