How many cold email follow-ups should you send? The data says 4-9

July 21, 2023

How do you stay on prospects’ minds without overwhelming them with cold emails?

We analyzed the reply rates of millions of lemlist cold outreach campaigns to find the answer for you.

In this article, you’ll learn the perfect number of cold email follow-ups that will make your prospects sit up and take notice - without flagging you as spam. Plus follow-up templates and tips to boost your outreach.

How many follow-up emails is appropriate?

In cold sales outreach, you should be sending anywhere from 4-9 follow-up emails. According to our analysis of millions of cold emails, your overall reply rates increase with every follow-up. But after 9 or more follow-ups, the benefits are negligible, and you could be marked as spam.

Let’s dive deeper into the analysis.

To test this, we measured the average reply rates of the individual emails sent in lemlist cold outreach campaigns.

Unsurprisingly, the first email gets the best average reply rate, and after that, the reply rate per email decreases steadily.

A table showing the averate reply rates per email in a cold outreach sequence. The highest reply rate is 4.5% for the first email, then 3.75% for the second, 2.75% for the third, 2.1% for the forth, and steadily less from there.

Of course, seen individually, reply rates below 2% don’t seem that impressive.

But when you look at the cumulative effect of each follow-up, you’ll see the combined reply rate rises above 20%.

If you send one email, you’re looking at an average reply rate of just 4.5%. But if you go up to 10, your total reply rate gets as high as 22.37%.

A line graph with the title "How many cold email follow-ups should you send?" . It shows he number of emails plotted against the reply rate. The cumulative reply rate increases with each email sent, from 4.5% at email one, up to 20% at email 10o

Let’s break it down into more concrete numbers.

Say you send a cold email campaign to 300 prospects. If you stop after the first point of contact, with an average reply rate of 4.5%, you might get about 14 replies.

But if you continue, you can get an average of 4-10 replies per follow-up, leading to a total of 60+ replies at the end of the campaign.

A bar graph with the title "more follow-ups get more replies." It shows the number of emails in a sequence, with the number of replies per email versus the total number of replies. It shows an incremental increase in total number of replies with every additional email.

So don’t give up after the first or second email. Many prospects just need a reminder or an extra detail or two before they’re ready to reply.

Now that you know how many follow-ups to send, let’s get into how and when you should send them.

How long should you wait between follow-up emails?

Studies show that if a recipient is going to reply to your email, there’s a 90% chance they’ll do it in the first 2 days.

So leave at least 2 days between your first and second point of contact, then give them a bit more time in between emails as you continue to follow up.

Here’s the frequency we recommend:

  • 2-day delay between emails 1 and 2
  • 4-day delay between emails 2 and 3
  • 4-day delay between emails 3 and 4
  • 5+ days between follow-ups after the 4th email

Depending on how many messages are in your sequence, aim for a total duration of 10-25 days.

The key here is to be persistent, but polite. If they’re not responding to your first email after 2 days, don’t expect them to respond faster after your 3rd or 4th.

And, of course, if they respond saying that they are not interested, do not continue to follow up.

How to write cold email follow-ups

When writing your follow-up email, keep these best practices in mind:

→ Add value with every new email (i.e. don’t just say “checking in!”)

→ Avoid guilt-trippy phrases like “I’m busy too,” or “just wondering if you got my last email…”

→ Keep your messages short (around 120 words), while maintaining enough context for the prospect to understand why you’re emailing them.

Here’s an example of a follow-up email that got an 86% open rate and a 71% reply rate:

Hi {{firstName}},

Not sure if you’ve seen my last email, but I’m going to make this one super quick in order not to waste your time.

I’m 100% confident that the collaboration between {{companyName}} and [YOUR COMPANY] is a match made in heaven. Here’s why…


Plus, all indicators suggest that once we release it, it’s going to be a major hit, and it will bring us a lot of attention.

Let me know {{firstName}} as I’m super interested to hear your thoughts.

Stay safe,

This follow-up works because it references the previous step to make a quick transition, and because it adds value.

If you want to use this template, do your research and replace the {{strongArgument}} custom tag with a sentence that will be different and personalized for every prospect.

Remember to focus it on the prospect, not you, which means a lot of "you" and no "I" in your cold email copywriting.

Here’s another example:

Subject line: exclusive invite {{firstName}}

Hello {{FirstName}},

We’ve selected {{companyName}} campaign as our weekly “what could this campaign be doing better?” round table.

In essence, we choose one very lucky campaign and go through its top and bottom to see what we could do to help your project grow.

We usually do a brainstorming session with 2-3 people from my team. (I’ve attached a screenshot of our Zoom meeting below.)

[custom image]

Erin from my team also took some notes about all the ideas that we had, so if you’re free sometime I’d love to have a chat with you!


P.S. Don’t want a follow-up? {{unsubscribe}}

Here is the personalized image that they included in this email. The bottom right quadrant populates with an image of every prospect this follow-up is sent to.

A custom image from a cold email campaign, with a screen capture from a zoom call showing 3 people and an open spot for the prospect's image

This follow-up got 87% open rates and a 23% reply rate.

Here’s why it worked:

  • Seeing the first email fail to generate replies, the sender switched the subject line and decided to make this follow-up special.
  • The custom image is there to grab attention, but also add that feeling of uniqueness as the team is on there looking sharp.
  • A simple call-to-action makes the prospects' lives simpler.

Want more examples for your follow-up emails? Check out these 9 cold email follow-up templates to get more replies.

To make your follow-ups more effective: go multichannel

So far, we’ve been investigating the reply rates of cold email campaigns. But one important way that you can boost your results is to go multichannel.

Multichannel prospecting is a sales tactic that involves using multiple channels at the same time to communicate with your prospects. This includes:

  • Cold emailing
  • LinkedIn
  • More social selling options (e.g. Twitter, Communities, etc)

You want to use the channels simultaneously so you can reach your lead on the platform that works best for them, which helps increase your response and meetings booked rate.

Here’s what the data says about adding social selling to your cold outreach:

An infographic with the title "go multichannel to hit your sales goals." The first bar shows that social sellers create 45% more opportunities, and the second bar shows "social sellers are 51% more likely to reach quota"
Source: SuperOffice

Sales reps who build personal brands on social media sites like LinkedIn get 45% more sales opportunities, and those who use it as a sales channel are 51% more likely to hit their sales quota.

To make your campaign multichannel, add LinkedIn profile visits, messages, cold calls, and other points of contact that meet prospects where they are.

Replace some of your 4-9 cold email follow-ups with these steps so that you’re not contacting them more than 10 or 11 times in total.

For the complete guide to multichannel outreach, use our step-by-step breakdown of multichannel prospecting, with examples of the most successful sequences.

How to send follow-up emails at scale

So, you should be sending 4-10 points of contact per campaign, spaced apart by 2-5 days, with personalized messages that address your prospects’ pain points.

You can of course do this manually, but writing out every single email and following up at the appropriate time will take hours out of your week. Plus, you’ll have to be careful to keep track of your prospects and follow-ups so that nobody falls through the cracks.

Another option is to use a sales automation tool like lemlist.

With lemlist, you can set up an automated multichannel sequence, including email, LinkedIn profile visits, messages, and connection requests, and manual tasks like cold calls and voice messages.

There are text, image, and video variables to personalize to every prospect, and you can stop the sequence automatically when prospects reply.

Here’s how to set that up:

Step 1: Sign in to If you don't have an account, you can create one here for free.

Step 2: Create a new campaign, and pick the steps you would like to include. Edit the number of days to wait before sending each new step.

a screenshot from a lemlist cold outreach campaign. There are emails programmed with 2-4 day delays between steps, plus linkedin steps

Step 3: Fill in the content of each step. You can use preset templates and variables to customize your message for each prospect.

a screenshot from a lemlist cold email. There is a template included with a custom image and custom variables.

Step 4: Import your contact list

A screenshot from a lemlist cold outreach campaign. There are options to import leads, including importing from a csv, emails, LinkedIn, an existing campaign, a CRM, Zapier, and an API i

Step 5: Go to campaign settings to stop the sequence when a lead replies, books a meeting, or clicks a link. This way they won’t continue to get follow-ups when they’ve already gotten back to you.

A screenshot of lemlist campaign settings, with the option to stop a lead's sequence when they reply by email or linkedin message, book a meeting, or click on a link

Step 6: Review your contacts and messages, and send!

The key takeaways

Here’s a quick reminder of what you should know about cold email follow-ups:

  1. Send anywhere from 4-9 follow-up emails in your cold sales outreach to maximize reply rates.
  2. Avoid sending 9 or more follow-ups so you’re not marked as spam.
  3. Space your follow-up emails with at least a 2-day delay between the first and second contact, followed by 4-day intervals up to the 4th email, and 5+ days after that.
  4. Add value with your follow-up emails, avoid guilt-tripping language, and keep your messages concise (around 120 words).
  5. Enhance your cold email campaigns by adopting a multichannel prospecting strategy, to increase response rates and generate more sales opportunities.

And if you’re looking for a tool that will help you book meetings with 17% of your leads, give lemlist a try, for free.

What you should look at next
data-driven insights
What is the best day to send cold emails? Data says: Monday!
You should be sending cold emails on Monday mornings - find out why, according to our analysis of millions of cold emails.
Julia Hamilton
September 27, 2023
data-driven insights
How to write effective cold email signatures (based on data)
Get 5 actionable steps to writing cold email signatures that catch the attention and push your prospects down the sales funnel.
Tony Do
September 21, 2023
data-driven insights
Call-to-action in emails: data-driven tips & examples that convert
Bad CTAs make users stall on buying a product or signing up for a service. Learn to write a perfect CTA and get examples to tell your user exactly what to do.
Julia Hamilton
September 14, 2023
data-driven insights
How to start an email: 25 high-conversion greetings & intro lines
Check out these 25 high-conversion email opening lines that will help you get more replies and book more meetings. Plus a data analysis of the best ways to start an email.
Julia Hamilton
September 7, 2023
data-driven insights
Do images send your cold emails to spam? No - we checked!
Not sure whether you should include images in your cold emails? Learn how images and gifs in cold emails impact deliverability.
Julia Hamilton
July 31, 2023
data-driven insights
7 ways to level up your cold email copywriting using data
Master the art of persuasive cold email copywriting with our proven techniques. Increase your response rates and achieve your sales goals faster.
Julia Hamilton
July 13, 2023

Book your
first meetings
this week!

Accelerate your business growth and start generating revenue with lemlist
Try for free
No card required.
Try for free
No card required.