Email list cleaning for cold outreach

Send to real inboxes.

Upload a list and get every address back marked valid, invalid, catch-all, disposable or unknown. You only pay for answers.

q4-prospects.csv

Done in 4 min

Valid

3,412

Invalid caught

212

Catch-all

188

EmailResult
[email protected]valid
[email protected]valid
[email protected]catch_all
[email protected]invalid
[email protected]disposable
[email protected]unknown

Charged for 3,812 answers. 262 unknowns and duplicates returned to balance.

5

result types on every row

1 credit

per answered address

$0

for unknowns, duplicates and typos

7 days

then your file and its addresses are deleted

How it works

Upload, scrub, download.

1

Upload

A CSV or XLSX up to 100 MB. We find the email column for you and skip duplicates before anything is charged.

2

We check every address

Syntax, mail servers, disposable domains, and a live mailbox check. We never send an email to your list.

3

Download the clean file

Your own columns with a status on every row, plus a valid-only file ready to send with.

What you get back

Every row, labelled.

email status reason suggested_fix mx_host
[email protected]validaspmx.l.google.com
[email protected]invalidmailbox_rejectedmx1.oldfirmco.com
[email protected]invalidno_mxgmail.com
[email protected]catch_allmail.meridiangroup.net
[email protected]disposable
[email protected]unknowntimeoutmta5.am0.yahoodns.net
[email protected]duplicate
not-an-emailinvalidsyntax
valid
The mailbox accepted the address on a domain that is not catch-all. Charged.
invalid
Bad syntax, no mail server, or the mailbox rejected it. Charged, except syntax errors.
catch_all
The domain accepts any address, so this specific mailbox can't be confirmed. Charged.
disposable
A known temporary-email domain. Charged.
unknown
No reliable answer. Never charged.
duplicate
Appeared earlier in your file. Never charged.

Pricing

Pay per answer. Credits never expire.

Buy a pack once and use it whenever. Unknown results, syntax errors and duplicates are always free.

Credits Price Per email Highlight
1,000 $5.99 $0.00599
5,000 $21.99 $0.00440
10,000 $24.99 $0.00250 Most popular
25,000 $49.99 $0.00200
50,000 $99.00 $0.00198
100,000 $179.00 $0.00179
250,000 $359.00 $0.00144
500,000 $499.00 $0.00100
1,000,000 $629.00 $0.00063
2,500,000 $1,499.00 $0.00060
5,000,000 $2,099.00 $0.00042
10,000,000 $3,999.00 $0.00040 Lowest per email
Buy credits

Start with 250 free credits. No card needed.

FAQ

Questions, answered.

Why are some results unknown?

Some mail servers time out, block checks, or defer every request. When we can't get a reliable answer we say so instead of guessing, and unknown results are never charged. Yahoo, AOL and Microsoft 365 domains do this often, so lists heavy in those addresses will show more unknown and catch_all results. Gmail answers honestly.

What is catch-all?

A catch-all domain accepts mail for any address, real or not. We detect this and mark those addresses catch_all rather than calling them valid, because the specific mailbox can't be confirmed.

Do you send email to my list?

No, never. We talk to the receiving mail server just far enough to learn whether the mailbox exists, then disconnect. No message is ever sent.

How long do you keep my file?

Uploaded files and the addresses in them are deleted 7 days after a job finishes. Your job history and billing records stay; the addresses go.

Do credits expire?

No. Buy once, use them whenever.

Can I get a refund?

We consider refunds for unused credits at our discretion. See the refund policy. Credits spent on completed verification aren't refundable, since the work was done.

Clean your next list before you send it.

250 free credits on sign-up. Your first results in minutes.