Verify emails

Check one address, or paste a list to clean it in bulk.

Preview: syntax, domain and risk-list checks are live. The mailbox and catch-all checks aren't switched on in this preview yet, so ordinary addresses show as unknown.

Single email

Instant answer for one address.

Bulk list

One address per line, or paste CSV. Up to 1,000 per list. Duplicates removed free.

Upload CSV / TXT

Deliverable

unique addresses
duplicates removed
Finished in s
Credits charged: (unknowns refunded)

Email	State	Reason	MX	Flags

How it works

Drop a CSV here, or paste your emails

q4-agency-leads.csv4,820 rows

[email protected]
[email protected]
[email protected]
[email protected]
…

Verify list

Add your emails

Upload a CSV, paste a list, or send addresses from your own tools. Your other columns stay untouched.

Checking your list2,990 of 4,820 done

We check every address

Thousands of addresses are checked in minutes. Watch the results arrive, or close the tab and come back.

Email	Verdict	Why
[email protected]	deliverable	Mailbox exists
[email protected]	risky	Shared inbox
[email protected]	risky	Accepts every address
[email protected]	undeliverable	Mailbox not found
[email protected]	undeliverable	Typo in the domain

A clear verdict on every row

Deliverable, risky, undeliverable or unknown, with the reason beside it, so you know exactly what to keep.

76%Deliverable

Deliverable3,640
Risky548
Undeliverable612
Unknown20

612 dead addresses removed. Unknowns refunded.Download clean list

Download your clean list

Get a CSV with a verdict on every row, or only the addresses that are safe to send to.

Instantly

Smartlead

HubSpot

Mailchimp

Apollo

Zapier

Google Sheets

Make

POST /api/v1/verifyor connect Claude, ChatGPT and Cursor with our MCP server

Send with confidence

Import the good addresses into your sending tool, or let your tools call us automatically. Bounces drop and your domain stays healthy.

Try it on your own list. 25 checks free for 3 days.Start your free trial →

Start your free trial →