Email Writing — The Complete Sales Guide
Write sales emails that get opened and replied to. Master subject lines, personalisation, and calls-to-action that drive more conversations.
What You Need to Know About Email Writing
Sales email is one of the highest-volume, lowest-quality activities in most sales teams. The average cold email gets a 1–3% response rate. The best-performing teams achieve 10–15%+. The difference is almost entirely in how the email is written — the subject line, the personalisation, the value proposition, and the call to action.
Proven Email Writing Techniques
Write Subject Lines That Earn the Open
Your subject line determines whether the email gets opened. Effective subject line patterns: specific personalisation (their name, company, or a trigger), genuine curiosity gap (a question they want answered), concrete specificity (a number, stat, or name), and short length (under 50 characters). Avoid: 'Quick question', 'Following up', 'Checking in' — these are ignored.
Lead with Relevance, Not Your Company
Most sales emails open with 'I'm [name] from [company]...' — which is the fastest way to get deleted. Lead with something relevant to THEM: a trigger event, a problem you've identified, a result you've achieved for similar companies. Make the first sentence about them, not you.
Keep It Short and Scannable
Sales emails should be 3–5 sentences. Prospects scan email on mobile in 3 seconds — if they can't see the value immediately, they move on. No paragraphs longer than 2 sentences. No bullet points (they look like a sales template). One clear ask at the end.
One Clear Call to Action
Every email should end with exactly one clear ask — not three options. The best CTAs are specific and low-friction: 'Does 15 minutes on Tuesday or Thursday work?' is better than 'Let me know if you'd like to learn more.' Make it easy to say yes.
Test and Learn Systematically
The highest-performing teams treat email as a continuous experiment. A/B test subject lines (send variant A to half your list, variant B to the other half), track open and reply rates by template, and update your sequences with the best-performing variants monthly.
Get AI Coaching on Email Writing
HELM's AI sales coach analyses your calls and deals to give you specific, personalised coaching on email writing. It identifies your specific patterns — where you're strong and where you lose momentum — so your coaching is targeted rather than generic.
Call Analysis
HELM records, transcribes, and analyses your sales calls — identifying specific email writing moments and suggesting improvements for your next call.
Deal Coaching
HELM reviews your active deals and identifies which email writing challenges are putting deals at risk — before the deal is lost.