lemlab

Use data to optimize your cold email length and get more replies

lemlist team
LAST UPDATED
November 29, 2023
READING TIME
7 min.

Tired of sending cold emails that go unanswered?

Perfect the length of your cold emails to get your prospects’ attention, prompt action, and get more meetings booked!

In this article, you’ll learn how long your cold emails should be, plus how to write them - based on an analysis of millions of cold outreach campaigns.

What is the perfect length of a cold email?

The optimal cold email length is about 120 words.

This word count got the highest average booking rates of millions of campaigns, at around 50%.

But you can go a little over or a little under: the sweet spot is 75-125 words. This range gets 5-15% higher reply rates than longer or shorter emails.

A line graph showing the booking rate x number of words in emails. The highest average booking rates come from emails at 120 words.

How you write your email also matters.

Your recipient is inevitably skimming their inbox. Sending long paragraphs makes it harder for them to read quickly, even if you've optimized the number of words.

And if they have to put work into reading your email, they won’t reply.

A good way to measure readability is by number of lines. According to another study, the best click-through rates come from emails with about 20 lines, including line breaks.

A graph showing the click through rates of emails with different numbers of lines of text. The highest click-through rate came from emails with 20 lines of text.

So what does this actually look like?

Here’s an example of a cold sales email that has not been optimized for readability:

A cold email with the title "congrats on your growth!" with the body text condensed into one long paragraph.

The text is clunky, long, and hard to read. The prospect has to sift through a block of text in order to get the gist.

In other words, the prospect will likely move this conversation to the trash.

Here’s that same email, optimized for length and formatting:

A cold email with readable line breaks in between the short paragraphs. The text reads "Hey Guillaume!  Congrats on the incredible growth in 2023. My team and I are huge superfans.  We've also been able to scale our agency's revenue 4x in the last 6 months thanks to your software and dope newsletters :)  We'd love to help with your mission to help entrepreneurs grow their businesses, so we've made this video to advance lemlist's brand through video and improve your YT presence.  I'm Adrian. I cofounded Dragonfruit Media; we're an agency that helps businesses scale on YouTube. We've worked with folks like Linktree, Ali Abdaal, and Scalable.co, and would love to help you out as well.  If you're interested, shoot me an email!   Thanks, Adrian"

Both of these emails have the same number of words. But the second is clearer, easier to read, and more likely to get a response.

Stay concise and break up the text of your emails to ensure your prospects actually respond to them.

How long is too long for a sales email?

When in doubt, aim for a cold email length of about 120 words.

But there’s no specific number that gets a 0% reply rate. In our analysis, even emails with 200+ words sometimes got replies - as long as they were valuable, readable, and targeted to the prospect.

Actually, some studies have shown that longer emails can be more successful, particularly with follow-ups:

A bar graphs showing booked meetings vs the length of a follow-up email. Follow-up emails with 4+ sentences got 15x higher booked meetings than shorter emails.

That’s because follow-up emails typically need more context, as your prospect may have forgotten your first message.

You may need to add some extra information so they understand what you’re asking for.

Here’s an example of a longer email that had an 85% open rate and 30% reply rate:

A cold email with this body text: Hi {{firstName}},  Just saw {{recentContent}} and thought it was super well made!  [content company] is looking for creators for their invite-only [creator program], and I think your content would crush it as its own show.  [Creator program] shows are 3-4 minute videos that get monetized with CPM’s similar to Youtube long-form, except it’s 10x easier to get views. It’s wild.  Our creators have been generating $10k+ per month completely hands off.  We handle everything for you-from getting the show approved to editing and even posting the episodes for you.  Here are a few of our shows making over $10k per month: [Example 1]: ($102k Revenue in 1 month) [Example 2]: ($27k Revenue in 1 month) [Example 3]: ($13k Revenue in 1 month)  Would you be interested in exploring this further?  Best,  {{signature}}"

Even though this email goes over the sweet spot of 120 words, it is:

✔️ skimmable - the paragraphs are short and well spaced

✔️ readable - the language is simple and easy to understand

✔️ targeted - it mentions the creator’s content and gives a specific offer

…which is why it was still successful!

How to write your cold emails

So you need to keep your cold emails around 120 words - but how should you actually write them?

Here are the components of a successful cold email:

  1. Clickable subject line
  2. Catchy greeting
  3. Intro line that hooks attention
  4. Compelling middle section or story
  5. Strong CTA
  6. Solid signature

Here's how to optimize each component of your cold email:

Write a clickable subject line

Keep your subject lines between 1-8 words, and make them short, sharp, and exciting.

They should be unique and personalized to your prospects: mentioning their recent activity, addressing a pain point, bringing up a common interest, etc.

Here are a few examples of clickable subject lines:

  • Hey {{firstname}}, congrats on your funding round!
  • Build {{companyname}} like {{commoninterest}}
  • little surprise for you {{firstname}}!

For the data proving which subject line convert, plus 10+ examples of subject lines with 80%+ open rates, read the complete guide to cold email subject lines.

Make your greeting catchy

Use the {{firstname}} tag to show you’ve put more effort in than a basic “hey,” or “hi there.”

A graphic comparing non-personalized greetings "Hey there, hey, hello" versus "Hi {{firstName}}, Yo {{firstName}}. There is a red X next to Hey there and a green check mark next to the personalized versions

Whether you use a more formal “Hello” versus a simple “Hey” will depend on your reader. Do your research to know what your prospects respond best to!

Turn your intro into a hook

The exact hook to use will vary based on your target audience, cold email strategy, and the type of industry you're in.

It determines the reader’s first impression, and whether they read the rest of the email.

Here are a few successful examples:

  • Make an irrisistible offer: “Mind if I bring you more customers, for free?”
  • Give value: “Here’s some feedback on {{companyname}}…”
  • Mention mutual connections: “While interviewing Timothy Yetch, he told me to…”

For a full breakdown of a cold email intro that converts, plus real examples, use our guide on how to start an email.

Craft a compelling middle

Come up with a quick storyline your prospects can relate to.

To accomplish this, you can turn to their pain points, identify their challenges, and try to convince them that you are part of the solution.

Remember to be specific, add as much relevant personalization as you can, and show understanding of your prospect.

Communicate the benefits that only you can offer.

If you need help adding sales pitches to your emails, try these 10 sales pitch examples.

Finish with a strong CTA

Stick to these rules for CTAs:

  • Don't have more than one call-to-action
  • Keep it short and sweet
  • Remove friction: for example, use a scheduling link to book a time

Want all 7 tips to write email closers that book meetings? Use this guide to CTAs.

Sign off

Keep your signature simple, with just these details:

  • Your name
  • Your title and name of company
  • Links to your social media accounts, if relevant

Don’t add too much fancy formatting or GIFs, or it will distract from your call-to-action.

An example of a cold email that converts

To see how it all works together, use this breakdown of a successful cold email.

It’s a classic networking email, with the goal of connecting with other founders, sealing partnerships, and adding integrations.

A screenshot of a cold email with the subject line "Collaborate?" The body text says "Hi {firstName}}, Let me just say Im a big fan of {{companyName}}. Just so you know I genuinely think that {{Personalization}}. My name is [Your Name] btw, [Your Title] at [Your Company]. We're a [What you do]. I'm writing this email to discuss {companyName}} and [your company] potential integration. We are seeing a huuuge market demand in our data and I have no doubt this will end up being a maor success if we make it happen. I'd love it if we could get on a call and talk about establishing a win-win partnership between our two companies. You game?"

The subject line is just one cheeky word that is short and grabs attention. Thanks to this and the targeted audience, this email had a 90% open rate.

The greeting is simple and personalized.

The intro line is personalized to the prospect and draws them into the rest of the email. An example of the {{Personalization}} variable could be “your XYZ LinkedIn campaign completely changed the way I write cold emails!”

The middle is a short message that goes straight to integration and how it can benefit the prospect.

There is just one CTA, it’s clear, and it provides a clear value proposition to the prospect.

The signature is short, sweet, and doesn’t distract from the CTA.

And the email is right around 110 words, with 16 lines (including the line breaks).

Follow the same format to start getting more replies and a higher CTR on your cold email campaigns.

Key takeaways

Here’s what to do to craft short cold emails that get replies.

  1. Keep your cold email length around 120 words for higher reply rates.
  2. Format your emails with about 20 lines of text and spaces to improve click-through rates.
  3. Longer emails can still be effective for follow-ups, providing additional context to prospects.
  4. Craft attention-grabbing subject lines and personalized greetings to increase engagement.
  5. Use hooks, compelling storylines, and strong CTAs to create impactful and effective cold emails

P.S. All of the successful campaigns we analyzed were using lemlist, the AI-powered cold outreach tool that can get you meetings with 17% of your leads. Give it a try for free!

lemlist team
Your source of actionable outreach tips and strategies that will help you get replies and grow your business.
Get weekly outreach tips
SHARE THIS ARTICLE
Thanks! You've successfully subscribed to lemlist newsletter
Oops! Something went wrong while submitting the form.
G2 Rating
Price
Best for
Standout feature
Con
4.9
star
star
star
star
star
$30/mo
$75/mo
$2,999/mo
Large, distributed sales teams
AI evaluation precision, gamified KPIs
Lack of tracking system
4.6
star
star
star
star
star-half
Not publicly available
Sales operations and finance teams
Powerful configurability
Limited training resources and complex to navigate
4.4
star
star
star
star
star-half
Not publicly available
Mid-market and enterprise businesses
Comprehensive incentive management
Potentially high cost and steep learning curve
4.7
star
star
star
star
star-half
$15/user/mo
$40/user/mo
Enterprise: custom price
Complex sales structures and businesses of all sizes
Complex sales structures and businesses of all sizes
Steep learning curve
4.6
star
star
star
star
star-half
Not publicly available
Collaborative teams
Connected planning
Complexity and steep learning curve
4.6
star
star
star
star
star-half
Not publicly available
Companies with complex sales structures
Complex incentive compensation management (ICM) with high efficiency and accuracy
Complexity for smaller teams and potentially high costs
4.7
star
star
star
star
star-half
Not publicly available
Companies who want to automate commission calculations and payouts
Simplicity and ease of use
Lack of features like redirection
4.7
star
star
star
star
star-half
$30/user/mo
$35/user/mo
Custom: upon request
Businesses that need a comprehensive and user-friendly sales compensation management software
Ease of use and adoption
Lack of ability to configure the product based on user needs
4.8
star
star
star
star
star-half
Not publicly available
Companies with modern sales culture and businesses who want real-time insights
A built-in dispute management and real-time visibility
Users say it works slowly, customer support is slow
4.9
star
star
star
star
star
$30/user/mo
$50/user/mo
Smaller sales teams
Powerful automation
Lesser user base and average user interface
4.7
star
star
star
star
star-half
Not publicly available
Companies with scalable needs
Automated Commission Calculations
Lack of filtering by date, no mobile app
ERP vs. CRM
ERP
CRM
Summary
Backbone of a business's internal operations.
Backbone of customer-centric interactions and operations.
Goal
To centralize and streamline core business processes in a company.
To increase customer experience, satisfaction and loyalty, and boost sales.
Focus
Internal operations and processes across departments (finance, accounting, inventory, supply chain, HR, and sales).
All interactions with leads and customers.
Manages
Internal business data like financial data, inventory levels, production details, supply chain, HR info.
All customer data like contact info, purchase history, communication history, customer preferences and more.
Users
Finance, accounting, operations, supply chain, and HR departments.
Customer-facing teams like sales, marketing, and customer service.
Benefits
Streamlines operations, improves data accuracy, enhances decision-making, boosts collaboration, increases productivity.
Improves customer relationships, increases sales, strengthens customer service, personalizes marketing campaigns, provides insights.
Price
$150 per user per year on average.
$10 to $30 per user per month on average.
PRM Tool
Rating
Feature
Pro
Con
Mobile App
Integrations
Free Plan
Pricing
4.65
star
star
star
star
star-half
Org-wide alignment
User-friendly layout and database
Suboptimal as a personal CRM
square-check
Lack of tracking system
square-check
Team: $20/month
Business: $45/month
4.7
star
star
star
star
star-half
Social Media Integration
Easy contact data collection
No marketing/sales features
square-check
Lack of tracking system
square-xmark
7-day trial
$12/month
4.75
star
star
star
star
star-half
Block Functions
High customization capability
Not a dedicated CRM
square-check
Limited
square-check
Plus: €7.50/month
Business: €14/month
N/A
Open-source
Open-source flexibility
Requires extensive manual input
square-xmark
Limited
square-check
Self-hosted
$9/month or
$90/year
3.1
star
star
star
Simple iOS app
Ideal for non-tech-savvy users
iPhone only
square-check
iOS only
Limited
square-xmark
1-month trial
$1.49/month or
$14.99/month
3.6
star
star
star
star-half
Smart Contact Management
Feature-rich and flexible
Reported bugs
square-check
Rich
square-xmark
7-day trial
Premium: $13.99/month
Teams: $17.99/month
4.4
star
star
star
star
star-half
Customizable Interface
Customizable for teamwork
Pricey for personal use
square-check
Rich
square-xmark
Standard: $24/member
Premium: $39/member
4.7
star
star
star
star
star-half
Integrated Calling
Integrated Calling
Too sales-oriented & pricey
square-check
Rich
square-xmark
14-day trial
Startup: $59/user/month
Professional: $329/user/month
4.8
star
star
star
star
star
Business Card Scanning
Business Card Scanning
Mobile only
square-check
Limited
square-check
$9.99/month
4.45
star
star
star
star
star-half
160+ app integrations
Comprehensive integrations
No free app version
square-check
Rich
square-xmark
14-day trial
$29.90/month or
$24.90/month (billed annually)
Capterra Rating
Free Trial
Free Plan
Starting Price (excluding the free plan)
Maximum Price (for the most expensive plan)
Best for
4.5
star
star
star
star
star-half
square-check
14-day
square-check
€15/month/seat billed annually
€792/month/3 seats billed annually + €45/month for each extra seat
Versatility and free plan
4.2
star
star
star
star
square-check
30-day
square-xmark
But it offers reduced price to authorised nonprofit organisations
€25/user/month
€500/user/month billed annually (includes Einstein AI)
Best overall operational CRM
4.3
star
star
star
star
star-half
square-xmark
square-check
Limited to 3 users
Comprehensive incentive management
€52/user/month billed annually
Small-medium businesses and automation
4.5
star
star
star
star
star-half
square-check
14-day
square-xmark
€14/seat/month billed annually
€99/seat/month billed annually
Sales teams and ease of use
4.1
star
star
star
star
square-xmark
square-check
Limited 10 users
$9.99/user/month billed annually
$64.99/user/month billed annually
Free plan for very small teams up to 10
CRM goal
Increase the sales conversion rate for qualified leads from marketing automation campaigns by 10% in the next 6 months.
SMART Breakdown
1. Specific: It targets a specific area (conversion rate) for a defined segment (qualified leads from marketing automation).
2. Measurable: The desired increase (10%) is a clear metric, and the timeframe (6 months) allows for progress tracking.
3. Achievable: A 10% increase is possible based on historical data and potential improvements.
4. Relevant: Boosting sales from marketing efforts aligns with overall business objectives.
5. Time-bound: The 6-month timeframe creates urgency and a clear target date.
Actions
Step 1: Refine lead qualification criteria to ensure high-quality leads are nurtured through marketing automation.
Step 2: Personalize marketing automation campaigns based on lead demographics, interests, and behavior.
Step 3: Develop targeted landing pages with clear calls to action for qualified leads.
Step 4: Implement lead scoring to prioritize high-potential leads for sales follow-up.
Step 5: Track and analyze campaign performance to identify areas for optimization.
Outcomes
Increased sales and revenue
Improved marketing automation ROI
Marketing and sales alignment
Data-driven marketing optimization
Table
CDP Software
CRM Software
Approach
Data-centric
Customer-centric
Focus
Interactions across various channels and touchpoints, both online and offline.
Sales, marketing, and customer service interactions.
Functionality
Automatically collects, organizes, tags, and makes data available in real-time.
Helps businesses track customer interactions, sales pipelines, prospects, and service requests.
Goals
Personalized customer experiences across all channels.
Better customer relationships, streamlined processes, and improved profitability.
Benefits
Data integration, management, and accessibility, allowing for detailed analysis and segmentation.
Better communication within teams and with customers by organizing information about customer interactions and history.
Data Handling
Handles both identified and anonymous data, stitches together various data points.
Deals primarily with identified customer data.
Use Cases
Personalized marketing campaigns, targeted advertising, content customization across multiple channels.
Managing campaigns and leads, enhancing customer service, providing better customer support, increasing customer satisfaction and loyalty.
Examples
Insider, Bloomreach, Salesforce Marketing Cloud CDP
HubSpot, Salesforce Sales Cloud Lightning Professional, and Zoho CRM
CRM
Free plan
Best feature
Best for
Con
1. HubSpot CRM
square-check
Sales automation
Sales teams
Up to 1,000 contacts
2. Insightly
square-check
Custom fields
Basic needs
Not enough info about the free plan
3. Agile CRM
square-check
Deal and sales pipeline tracking
Small teams
Up to 10 users
4. Zoho CRM
square-check
Lead and contact management
Businesses of all sizes
Limited to 3 users
5. ClickUp
square-check
Unlimited tasks and unlimited members
Personal use
Up to 100MB storage
6. EngageBay
square-check
Live chat
Small and midsize enterprises
Up to 1,000 branded emails per month
7. Bitrix24
square-check
Unlimited users and 5 scrum teams
Big teams
Up to 5GB of cloud storage
8. FreshSales
square-check
Easy to use and simple setup
Beginners
Up to 3 users
9. Mailchimp
square-check
Very beginner friendly
Marketing teams
Send up to 500 branded emails per month
Type of Affiliate Marketing
Unattached
Related
Involved
Format
Paid advertising
Social media or YouTube channels
Dedicated website or blog
Focus
Quick income
Your niche
Your audience
Engagement with your audience
square-xmark
square-check
square-check
square-check
square-check
Very close connection with your audience
Pro
Little effort
Higher credibility thanks to your niche
Long-lasting and scalable
Con
Paid ads cost a lot
Potential for bias since you don’t use the thing you promote
Require time, effort, and dedication

What you should look at next

lemlab

10 best ways to find leads online

On average, organizations generate nearly 2,000 leads a month and nearly 90% of that is from online lead generation.
April 30, 2024
lemlab

8 Strategies to re-engage and convert lost leads

With the right re-engagement strategy, you can spark your leads' interest again and convert them into loyal customers.
April 30, 2024
lemlab

Call Tracking and Analytics: How Does it Work?

Your customer support and sales team are the window into what your customers want from your business.
April 18, 2024
lemlab

Guide to Performance Improvement Plan (AKA PIP) in the workplace

Your team should run like clockwork. Learn how to make use of a PIP to make sure that no one gets left behind.
April 16, 2024
lemlab

Lead Generation: The Ultimate Guide

You've started your business, now you need to know who to target! Find out how to start generating leads and get 7 lead generation strategies.
February 6, 2024

What you should look at next

Receive weekly outreach tips in your inbox, sent to 210 000+ salespeople, marketers, founders, and entrepreneurs worldwide!

Subscribe to the lemlist newsletter
You've successfully subscribed to the lemlist newsletter!
Oops! Something went wrong while submitting the form.