Which Reply.io columns does it read?

The email, a status column, an Opted out or Bounced column if present, a reply category or outcome, and a verification column when one is there. The notes above the result say which were found.

Does the export include the mailbox that sent to each contact?

Not the standard contact export. Reply.io's help points to Reports > Emails > Export contact CSV for an Email account column; it isn't needed here.

Is my contact list uploaded?

No. The file is read in your browser. Nothing is sent unless you choose to check the addresses afterwards.

Reply.io contacts to email list: a suppression file and the contacts safe to re-use

In short: Reads a Reply.io People CSV: status (Active, Finished, Replied, Bounced, Opted out), Opted out and Bounced columns when present, reply category; bounced and opted out always set aside, replied and not-interested by choice. Limit: Reply.io doesn't publish its CSV export headings; status values and the Opted out and Bounced columns are inferred from its help pages, so check the notes above the result.

Export the contacts from Reply.io's People tab as CSV and upload it here. Bounced and opted-out contacts always go to the suppression file; contacts who replied or said no go there too by default, so they don't get a cold sequence again. The rest are safe to re-use. Check them live before the next sequence.

Price: this tool is free. Checking a whole email list is from $9/mo, and the first 100 checks are free with Google, no card. See pricing

Upload a People export from Reply.io (People > select > More > Export to CSV), or paste it

Upload the Reply.io CSVRuns in your browser. Nothing is uploaded.

Set aside leads who replied, are interested or booked a meeting (don't cold-email them again)Set aside leads marked not interested, wrong person or lostSet aside addresses the tool's own check marked risky, catch-all or unknownSet aside role addresses (info@, sales@, support@)

SimpleAPI

Sample result

6 Reply.io rows: 1 contact to re-use, 4 in the suppression file.

Addresses: 1 to re-use
Replied: 2
Repeats merged: 1

What this means for you

Opted out and bounced always go; replies are set aside to handle by hand.

Next step:Verify the cleaned list

Status read
Opted out honoured
Replies set aside
Suppression CSV

Reply.io
People
CSV

By SimpleVerifier Team · Last updated November 4, 2026 · Runs in your browser; nothing you paste is sent to us

How do I check the reusable contacts before the next campaign?

Download the reusable contacts here.
Upload them at /verify. Every address gets a live mailbox check, and valid, risky and invalid download as separate files; catch-all domains are marked. The first 100 email checks are free with a Google sign-in, no card.
Import only the valid file into the new campaign.

Check the addresses

How do I build a suppression list from a Reply.io export?

In Reply.io, open People > Contacts (or a sequence's People tab), tick the contacts or select all, and choose Export to CSV from the More menu.
Upload the CSV here, or paste it. Exports from several sequences can be pasted one after another; repeats merge.
Choose what to set aside besides bounces and opt-outs: replied or interested (on), not interested (on), risky verification, role addresses.
Download the reusable contacts and the suppression file. Add the suppression file to every other tool you send from.

Example

You enter: A Reply.io People export with 6 rows from 2 sequences: Status Finished, Bounced, Paused, Replied and Active, Opted Out Yes on one contact, Bounced Yes on another, and Ana in both sequences.
You get: 1 contact safe to re-use and a 4-contact suppression file: bounced, opted out, Kim who replied interested, and Ana, merged, whose second sequence said not interested.
Limits: Runs in your browser with no row cap; an uploaded file can be up to 25 MB.

Why put replied contacts in the suppression file?

Someone who replied, booked a meeting or asked you to stop is past the cold stage. Another cold sequence reads as automation that ignored their answer, and it's where spam complaints come from. They're set aside to start; untick the option to keep them.

Bounced and opted-out contacts are always set aside, whether the status column or a yes/no column says so.

Is a finished contact still safe?

Finished means the sequence ran out of steps without a bounce, on the day it ran. Inboxes close when people change jobs. Before re-using contacts in a new sequence, a live mailbox check finds the ones that closed.

Who uses this tool, and for what?

SDR teams: Move contacts from Reply.io to another sequencer without the bounces and opt-outs.
Agencies: Hand a client a clean list and a suppression file when the engagement ends.
Founders: Keep one suppression list across Reply.io, your CRM and any other sender.

What can’t this tool tell you?

Reply.io doesn't publish its CSV export headings; status values and the Opted out and Bounced columns are inferred from its help pages, so check the notes above the result.
An opt-out recorded in Reply.io's global opt-out list but not on this contact won't be in the file.
It can't tell which addresses have a working inbox today; that needs a live mailbox check.

Common questions

Which Reply.io columns does it read?: The email, a status column, an Opted out or Bounced column if present, a reply category or outcome, and a verification column when one is there. The notes above the result say which were found.
Does the export include the mailbox that sent to each contact?: Not the standard contact export. Reply.io's help points to Reports > Emails > Export contact CSV for an Email account column; it isn't needed here.
Is my contact list uploaded?: No. The file is read in your browser. Nothing is sent unless you choose to check the addresses afterwards.

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

Get started — $39/mo See the published limits first

Plans from $9 a month, 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.