Verify an Apollo export of 25,000 contacts before you sequence it
Cleaning an Apollo export of 25,000 on SimpleVerifier costs $29 (one-time pack of 25,000 checks that never expire), about $1.16 per 1,000, and takes about 2 days at today's shared pace. Export it as a CSV, upload it, and download the valid, risky and invalid files with your original columns kept.
By SimpleVerifier Team · Updated · Export steps follow each tool’s own help article, linked below. No accuracy test was run.
Get the list out
A people search or saved list from Apollo.io, exported to CSV for a cold sequence.
Export contacts from Apollo.io
- In Apollo, open Search > People and filter to the contacts, saved search or list you want.
- Select the contacts, then click Export.
- Choose whether to export all selected contacts or only those with verified emails.
- Click Export records, then go to Settings > Import & Exports > CSV Exports and click Download.
Apollo's help notes that exporting contacts you have already saved uses no credits, while net-new people are saved first and can use credits.
Source: Apollo.io help · Verify a Apollo.io export
Free tools that read this export in the browser: Apollo email verifier, Apollo contacts to email list.
What verification does to this list
- Each address gets our own SMTP mailbox check at the time you upload, separate from the email status Apollo shows on the record.
- People who have changed jobs since the record was last updated come back invalid when their old company's mail server says the mailbox no longer exists.
- Catch-all company domains come back risky rather than valid, so you can keep them out of the first sends or send them a smaller batch.
- Your other columns, such as title, company and LinkedIn URL, are kept, so the valid file goes straight into your sequencer.
Apollo.io: Apollo's export can include emails Apollo has not verified. Exporting only verified emails does not make a catch-all address safe. Apollo pauses a sequence when its bounce rate passes the auto-pause threshold set in your team's sending policy (Bounce guard), but its help does not publish a default number. Its bounced-email article calls a bounce rate under 2% typical and says a rate consistently above 5% needs immediate investigation.
What 25,000 emails cost on SimpleVerifier
Every plan or pack that takes the whole list in one go, cheapest first. Per 1,000 is the price divided by 25,000. Other verifiers’ published prices for this size are on the 25,000 emails page.
- One-time pack of 25,000$29 ($1.16 per 1,000)
Credits never expire; standard speed; CSV verification only
- Pro, one month$39 ($1.56 per 1,000)
the first 100,000 checks a month at full speed, then slower, never cut off: all 25,000 at full speed
- Business, one month$99 ($3.96 per 1,000)
the first 300,000 checks a month at full speed, then slower, never cut off: all 25,000 at full speed
- Agency, one month$249 ($9.96 per 1,000)
the first 750,000 checks a month at full speed, then slower, never cut off: all 25,000 at full speed
Pro is never cut off: the first 100,000 checks a month at full speed, then slower, never cut off. Monthly plans renew until you cancel; packs are one payment.
A different size
How long 25,000 emails take
- We run about 13,000 mailbox checks a day today, shared by all customers. At today's shared pace, 25,000 checks in one list take about 2 days to finish. The list queues and its card shows the ETA; nothing is cut off.
- Check capacity is shared by all customers: list jobs run at up to about 60 addresses a minute while the day's capacity lasts, so a very large list queues rather than failing and can take days.
- Bad syntax, dead domains and disposable addresses come back at once, and results confirmed in the last 14 days return instantly, so a list you checked recently finishes sooner. Each job card shows an estimated finish time.
What you get back
- Valid
- The recipient's mail server confirmed the mailbox exists.
- Risky
- The domain works but the mailbox could not be confirmed, usually a catch-all domain that accepts every address. Anything unconfirmed is reported as risky, never as valid.
- Invalid
- The server confirmed the mailbox does not exist, or the syntax is broken, the domain has no mail server, or the domain is a known disposable provider.
Results download as separate files for valid, risky and invalid. The email column is found by its header or its contents, every other column in your file is kept, and the cleaned files come back with your original columns, so they import straight back into your sending tool.
Common questions
- How do I export my contacts from Apollo.io?
- In Apollo, open Search > People and filter to the contacts, saved search or list you want. Select the contacts, then click Export. Choose whether to export all selected contacts or only those with verified emails. Click Export records, then go to Settings > Import & Exports > CSV Exports and click Download. Apollo's help notes that exporting contacts you have already saved uses no credits, while net-new people are saved first and can use credits. These steps follow Apollo.io's own help article.
- How much does it cost to clean an Apollo export of 25,000?
- $29 on SimpleVerifier (one-time pack of 25,000 checks that never expire), about $1.16 per 1,000. Duplicates and addresses we cannot check are not counted, so the real number is usually lower than the row count.
- How long does a list of 25,000 take?
- About 2 days at today's shared pace of about 13,000 mailbox checks a day, shared by all customers. The list queues rather than failing, the job card shows an estimated finish time, and nothing is cut off.
- Can I upload all 25,000 in one file?
- Yes. Uploads take up to 100,000 rows in one CSV, and the email column is found automatically.
- Does verification tell me who agreed to be emailed?
- Verification tells you whether a mailbox can receive mail. It does not tell you whether the person agreed to hear from you, so check consent before you mail anyone, whatever the result.
- Can I try it before paying?
- Yes: the first 100 email checks are free with a Google sign-in and no card, on the same SMTP mailbox check the paid plans run. Upload a sample of the export first, then pick the plan or pack that fits.
Check a sample of your list first
Duplicates and addresses we cannot check are not counted, so the real number is usually lower than the row count. Start with the free checks on part of the list, then pick the plan or pack that fits.