You're Spending Thousands to Email People Who Don't Exist
One dead list, mailed monthly, quietly costs you more than a year of verification ever would. £20 tells you exactly who's real, before you burn another pound.
No subscription. No account. Just your list and £20.
Any list size
Up to 1,000,000 rows. One CSV or Excel file. One flat price.
While it runs
Live progress
Watch your list get verified in real time, no waiting in the dark.
No account needed
Come back any time
Your access code brings you straight back to your job, even days later.
Three steps. No sign-up.
Pay £20, get your code
One flat payment, no account required. You get an access code back immediately.
Upload your list
Drop in a CSV or Excel file, up to 1,000,000 emails, and watch it verify live.
Download the results
Every address comes back tagged VALID or INVALID, ready to clean your list.
Who it's for
Agencies and freelancers
Protect your clients’ sender reputation. Verify each list before the first send.
Online shops
Abandoned-cart and sale emails only work if they arrive. Clean your customer list first.
Charities and newsletters
Every bounce hurts the emails your real supporters want. One price, however big your list.
A Dead List Costs More Than You Think
Every bounce means wasted sends, wasted time, and another hit to your email deliverability. Keep sending to an unverified list and those costs keep adding up every month.
Example: a 50,000-address list with 8% invalid addresses sends 4,000 bounces every campaign. Verify once for £20 and every later send starts clean.
Verify your list once for just £20.
Clean your list before your next campaign and make every send count.
Questions
What exactly do I get for £20?
One-time access to verify a single email list, up to 1,000,000 rows, in one .csv or .xlsx file. You get back the same list with a verification status next to every address. No subscription, no recurring charge.
What counts as "valid"?
We check formatting, domain and MX records, and mailbox existence where it can be determined. Each address comes back as VALID or one of several INVALID reasons (bad format, no mail server, mailbox not found, and so on) so you can see why, not just a yes/no. A catch-all domain accepts mail to any address, so we can’t confirm the mailbox exists. We flag these so you can decide whether to keep them.
What file formats do you accept?
CSV and Excel (.xlsx). We auto-detect the column that holds email addresses, so it doesn’t need to be first or specially named.
Can it really handle 1,000,000 rows?
Yes. Your file uploads directly into storage rather than through a single request, gets split into small chunks behind the scenes, and each chunk is verified independently — so list size doesn’t create a bottleneck the way it would with a simple upload-and-wait tool.
What if I close the tab or lose connection?
The access code you get after payment is your key back in. Save it (or bookmark the dashboard link) and use "Resume with a code" from the homepage any time to pick up right where you left off, even after the job has finished.
Do you store my list?
Your file and results are kept only long enough for you to verify and download them, tied to your access code. We don’t sell, share, or use your list for anything else.
Stop guessing who's real.
For just £20, get started with any list size, big or small. Simply upload and see results in minutes, no waiting around.