UK Email Verification - ICO Registered - CSA STAR Certified

UK-Hosted Email Verification.
GDPR Compliant by Design.

BounceZero is a UK company (Companies House 17153835) with UK servers and ICO registration. British businesses get email verification that stays in the UK - no US data transfers, no GDPR headaches. 65+ signals per address, $3 per 1,000 verifications.

Start Free - 100 Credits See Pricing

UK servers - data stays in the UK ICO registered ZC132839 CSA STAR certified

Backed by & listed on

AWS

Activate

Google

for Startups

MongoDB

Atlas

Datadog

Startup Program

UK Ltd Co.

No. 17153835

AWS

Activate

Google

for Startups

MongoDB

Atlas

Datadog

Startup Program

UK Ltd Co.

No. 17153835

Verifies All Major UK Email Providers

Live SMTP verification against every UK ISP and business mail server

BT / BTinternet

btinternet.com, bt.com

Sky Broadband

sky.com, btopenworld.com

TalkTalk

talktalk.net, talktalk.co.uk

Virgin Media

virginmedia.com

Microsoft 365

All .co.uk business domains

Google Workspace

UK business Gmail domains

How to Verify Your UK Email List

1

Export your list

From your CRM, ESP, or subscriber database - export contacts to CSV with the email column.

2

Upload to BounceZero

Create a free account and upload your CSV in the Bulk Verification section.

3

Run 5-stage verification

Syntax, DNS/MX, live SMTP mailbox, provider intelligence, and ML scoring. Results in minutes.

4

Download clean results

Filter to Deliverable. Invalid, Disposable, Role, and Catch-All addresses are clearly flagged.

5

Send with confidence

Reimport your clean list to your ESP. UK GDPR-compliant: your data never leaves UK servers.

New to verification? Start with the complete email verification guide.

Frequently Asked Questions

Is BounceZero compliant with UK GDPR?

Yes. ICO-registered (ZC132839), CSA STAR certified, UK servers. Uploaded lists are deleted after verification. No US transfers.

Is BounceZero a UK company?

Yes - BounceZero Ltd, Companies House 17153835, 66 Paul Street, London EC2A 4NA.

Does BounceZero verify BT and Sky email addresses?

Yes - live SMTP verification against BT, Sky, TalkTalk, Virgin Media, and all major UK ISP mail servers.

How much does it cost?

$3 per 1,000 verifications. 100 free credits on signup - no credit card required.

The UK's Own Email Verification Platform.

100 free verifications. $3/1K after that. UK-hosted, ICO-registered, CSA STAR certified.

Start Free How Bulk Works

Email verification by country

ISP-specific verification for major markets - local providers, local compliance

US email verification

Comcast, AT&T, Verizon - CAN-SPAM compliance

French email verification

Orange, SFR, Free, Laposte - CNIL compliance

German email verification

GMX, T-Online, Web.de - DSGVO compliance

Australian email verification

Bigpond, Optus, iinet - Spam Act 2003 compliance

Canadian email verification

Rogers, Bell, Shaw - CASL compliance

Spanish email verification

Movistar, Orange, Vodafone - LOPDGDD compliance

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