MyCQL
Advanced 4-Layer verification • quality-first deliverability

Verified United Kingdom Business Email Leads

Get UK-focused, verified business email leads for professional outreach within the United Kingdom. Build targeted segments by city and business criteria, then export CSV for your CRM.

Why United Kingdom–Specific Leads Perform Better

UK outreach works best with UK-built datasets: local business structures, UK-based domains, and regional targeting. This page focuses on United Kingdom intent (not global “by country” intent).

What’s included

Data quality for UK outreach

UK domains often use strict mail protections (Microsoft 365/Exchange) and catch-all setups. With Layer4 enabled, strict filtering can reduce export volume — but it improves deliverability and protects sender reputation.

Tip: If you need more volume, consider including catch-all results (depending on your campaign tolerance).

Need leads from multiple countries? Explore our global verified email leads by country hub.

Compliance

Your safety is our priority. We structure our data to support your compliance efforts. Please ensure all outreach respects local opt-out requirements and data protection laws. Refer to our Acceptable Use for best practices.

FAQ

Why are UK exports sometimes smaller than expected?

Some UK company domains use strict protections (Microsoft 365/Exchange) and catch-all configurations. When you enable Layer4 and export “Deliverable only”, MyCQL prioritizes inbox-safety over volume, which can reduce export size while improving deliverability.

What does “catch-all” mean?

A catch-all domain accepts mail for many addresses, even if a specific mailbox may not exist. This prevents full confirmation during verification. Catch-all emails are not guaranteed invalid, but they carry higher uncertainty than confirmed deliverable inboxes.

What does “Temporary Unreachable” mean?

Temporary Unreachable means the mail server could not be reached at the time of verification (for example, rate-limiting, timeout, or temporary network/DNS issues). It is not confirmed invalid and may become deliverable after a later recheck.

What fields are included in UK leads exports?

Exports include real names and email addresses. Additional fields like city, job title, interest/industry tags, and language indicators are included where available.

Can I preview the data before purchase?

Yes. Previews are designed to be safe and reduce scraping. Export access unlocks after purchase (and any free credits you may have).

Is outreach in the UK allowed?

Yes. UK B2B outreach is permitted when conducted in compliance with UK GDPR, PECR, and accepted email marketing best practices, including clear identification and opt-out options.