What is cold email?

A cold email is the first message to someone who hasn't heard from you — done right, it starts real business relationships.

Updated Oct 22, 2026 · 1 min read

Definition

A cold email is an unsolicited email sent to a person or business you have no prior relationship with, usually to start a business conversation: a sale, partnership, sponsorship or introduction.

Cold email vs spam

The difference is relevance and respect:

Cold emailSpam
sent to a chosen person who fitssent to everyone
personal and specificgeneric
honest sender and subjectmisleading
easy to opt outignores opt-outs
low volume per inboxblasted

Rules

Laws differ by country. In the US, CAN-SPAM requires accurate headers and subjects, a physical address and a working opt-out. The UK and EU have stricter rules for some recipients (GDPR, PECR). See GDPR and B2B cold email.

Best practices

The list comes first

A great cold email to the wrong person is still wasted. Start with a fresh, well-targeted list with real contact names.

Example

Hi Sam — Carter Plumbing shows 6th for "emergency plumber Denver", behind companies with fewer 5-star reviews than you. I put together a short fix list for your Google profile — want it?

Short, specific, honest and easy to answer: that is a cold email, not spam.

Key takeaways

  • Cold email is a first, relevant business message to someone new.
  • Relevance and respect separate it from spam.
  • Follow the email rules where your recipients are.

Frequently asked questions

In many countries, B2B cold email is allowed if you follow the rules — honest sender details, an opt-out and, in some places, extra conditions. This is general information, not legal advice.

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