Do cold emails still work for B2B?

This question usually arrives after someone has already tried cold email, sent a few hundred messages, had almost nothing back, and concluded the channel is finished. It is a reasonable conclusion to draw from the experience, and the wrong one to draw about email as a channel.

Cold email still produces genuine B2B conversations. It just does not produce them from a generic message sent to a bought list with no reason for that particular person to read it that week.

Why does cold email get such a bad reputation?

Most of what lands in a B2B inbox under the banner of cold email is the same message sent to thousands of loosely qualified contacts, with a first name merged in and nothing else that suggests a human looked at the recipient's business before writing it. Recipients can tell within a sentence, and they delete accordingly.

That experience — both sending it and receiving it — is what shapes the belief that the channel does not work. The channel is fine. The inputs were the problem.

Who should actually be getting the email?

Targeting comes before wording. An email written brilliantly for the wrong recipient still fails, and a plain email sent to exactly the right person at the right moment can start a real conversation. Before writing anything, be specific about who you are contacting: what size of business, what role, what situation are they likely to be in, and why would this specific person plausibly need what you sell.

A list built from a rough sector and job-title filter is a starting point, not a target list. The narrower and more accurate the list, the less the email itself has to work for.

What makes a message relevant rather than generic?

Relevance is not the same as personalisation for its own sake. Mentioning someone's job title back to them is not relevance. Relevance is showing you understand a situation that business is likely to be in — a change they have made, a problem common to their sector, a trigger visible from the outside — and connecting that, briefly, to why you are writing.

This is where a commercial trigger matters. New premises, a leadership change, a funding announcement, a new regulation affecting their sector, a competitor's product being discontinued — these give you a real reason to make contact now, rather than an arbitrary one. An email with a genuine trigger behind it reads completely differently to one without.

How much personalisation is actually needed?

Full bespoke research on every single contact does not scale, and it is not usually necessary. What matters is that the email demonstrates the sender has looked at this business specifically — one accurate, relevant line is often enough — and that the offer connects logically to what that line implies. A paragraph of generic flattery about the company's website is worse than no personalisation at all, because it signals a template rather than attention.

A workable approach is to personalise the opening line and the reason for contact, and let a consistent structure carry the rest of the message. That is achievable at reasonable volume without becoming obviously templated.

What should the message actually say?

Short, specific, and about them rather than you. State the reason you are writing, connect it to something plausible about their situation, and ask a low-effort, answerable question — not a request for a meeting from someone who has never heard of you. A long email explaining your entire proposition is rarely read; a short one that earns a reply is.

Avoid attaching a brochure, avoid multiple links, and avoid a subject line that reads as a sales pitch. The first email's only job is to earn a reply or a reason to follow up — not to close anything.

Does sending more emails make up for weaker targeting?

No, and this is where a lot of businesses do real damage. Increasing volume to a poorly targeted or poorly researched list does not improve results — it multiplies the number of people who now have a slightly negative impression of the company, and it increases the risk of the sending domain being flagged as spam, which then affects every other email the business sends, including invoices and normal correspondence.

Volume is a multiplier, not a fix. It amplifies whatever the underlying targeting and message quality already are, for better or worse.

What about follow-up?

Most replies to cold email do not come from the first message. They come from a short, considerate sequence — typically two or three follow-ups spaced over a couple of weeks, each adding a small piece of new information or a different angle rather than simply repeating 'just checking in'. A single email sent once and never followed up is a much weaker version of the same activity.

Follow-up should stop, not continue indefinitely, once it is clear there is genuinely no interest — persistence past that point damages the relationship rather than building it.

What should I know about deliverability and the rules?

Technical deliverability matters more than most people writing cold email realise. Sending high volumes from a domain with no warm-up, poor authentication (SPF, DKIM, DMARC not properly set up) or a history of high bounce rates gets messages routed to spam regardless of how good the content is. This is a practical, fixable issue, and worth getting right before judging the content.

On the compliance side, UK B2B email is not a free-for-all. PECR (the Privacy and Electronic Communications Regulations) sets rules around unsolicited electronic marketing, including to corporate contacts, and there are legitimate-interest and opt-out requirements worth checking with someone who knows the current position rather than assuming email marketing rules only apply to consumers. This is worth doing properly rather than guessing.

So does it work, or not?

It works as one part of a wider prospecting effort, aimed at a well-defined list, sent for a real reason, written briefly and specifically, followed up properly, and sent from a domain that is technically sound and compliant. It does not work as a way to reach a large number of loosely qualified contacts quickly with minimal effort, and no rewrite of the subject line fixes that gap.

If your outbound email is producing almost nothing, the fastest diagnostic is to separate the questions: is this a targeting problem, a message problem, a deliverability problem, or a volume-without-follow-up problem. They call for different fixes, and most businesses are trying to fix the wrong one.

If you are not yet sure which of these problems you actually have, the Sales Help for Founders & Business Owners hub sets out the common causes of weak outbound results and points to the right starting place for each.