Cold email rules for UK contractors.

Cold email can win work, and in the UK it has rules. The main ones sit in the Privacy and Electronic Communications Regulations, called PECR. This is a plain words guide for contractors, not legal advice. The ICO, the UK data regulator, publishes the full guidance.

First, who are you emailing?

The rules depend on who owns the email address. PECR splits people into corporate subscribers and individual subscribers.

  • Corporate subscribers: limited companies, limited liability partnerships (LLPs) and some other bodies. You can send them cold email without asking first.
  • Individual subscribers: sole traders and most ordinary partnerships. You need their consent before you send them marketing email, with some narrow exceptions for people who are already your customers.

Do not guess from the name

A business called Smith and Sons might be a limited company or a sole trader. Check before you email, for example on Companies House, where limited companies and LLPs are listed. If you cannot tell, treat it as an individual and leave it out.

What every email must include

Even when you can email a company, your message has to be honest and easy to stop.

  • Say who you are, and do not hide or fake the sender
  • Include a real postal address or other way to contact you
  • Include a clear, working way to opt out, such as an unsubscribe link
  • Stop emailing anyone who opts out, and keep a list so you do not email them again

Personal data rules still apply

A work email that names a person, such as a first name and surname, can count as personal data under UK data protection law. Only collect what you need, say how you got it if asked, and keep it safe. Remove people on request.

Keep it relevant and low volume

Write to businesses that could really use what you do, send a few short emails rather than many, and stop when someone says no. Good practice also helps your emails reach the inbox.

Where Gaffio helps. Gaffio adds an unsubscribe line to every email and shows the Companies House result for each contact, so you can see which are limited companies before you send. You decide who to email.

Questions

Good to know.

Can I email a limited company without asking?

Yes, under PECR you can send marketing email to a corporate subscriber, as long as you identify yourself, give contact details and offer a simple way to opt out.

Can I cold email a sole trader?

Not without their consent, apart from narrow exceptions. It is safest to leave sole traders out of cold email.

What happens if I break the rules?

The ICO can take action and issue fines. Check the ICO website for the current guidance and penalties.

Is this legal advice?

No. It is a plain guide. Read the ICO guidance or ask a solicitor if you are unsure.

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