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How to warm up an email account before sending cold emails?

15 min read
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Email deliverability is a significant concern when you are doing a cold email outreach.

According to a report by SuperOffice, more than 20% of emails fail to reach the inbox. Time and again at Saleshandy, we see a new email account used for sending cold emails gets blocked as soon as the outreach begins. 

The problem is the new email accounts aren’t warmed up.

With the Google spam update, it’s becoming harder to reach the inbox as the majority of the emails are marked as spam.

To avoid this, before you start a cold email outreach, it is essential to warm-up your new email account.

In this blog, we will explain to you how to warm-up an email account before sending cold emails so that your email delivers into the inbox rather than spam.

What is email warm-up?

The email warm-up is a way you establish a reputation for a new email account and increase the email sending limit.

The warm-up process includes sending emails from a new email account, starting with a smaller number, and gradually increasing the number of emails each day.

When a user creates a new email account, the email service provider gives daily sending limits. However, a fresh account can’t use it entirely.

For example, Google provides 2000 emails/day for a G Suite account. But from day one, you can’t send it all; you get a smaller limit.

To use it to its full potential, you have to build a good reputation, which can be done by email warm-up.

Ideally, it takes 8-12 weeks to accomplish maximum deliverability. Depending on email volume and the engagement in the warm-up process, the email gets ready faster. The email warm-up may take a longer time than anticipated if the recipient’s engagement level is too low.

Why is email warm-up important?

Email warm-up is a process required to build a reputation and have a higher delivery rate. It is essential when you are planning to run a massive cold email outreach with a new account to ensure emails land in inbox.

In a cold email campaign(sequence), the first thing you need is to reach the recipient’s inbox. Once you are there, having a good engagement will build a more significant relationship.

If the email is very well warmed before sending cold emails, it will avoid the spam filter, get delivered in the inbox, and have a higher open rate.

So without any further ado, let’s dive deep and find out how to warm-up an email account before sending cold emails that make your email account more efficient, increase your sender reputation and improve your email deliverability.

How to warm-up an email account before sending a cold email?

You can warm-up your email account using two methods 

Method 1 : Warm-up your account manually

Method 2 : Automate the email warm-up process (recommended)

Method 1: Warm-up your account manually

Step 1: Authenticate your account
Step 2: Send individual emails
Step 3: Maintain conversation threads
Step 4: Subscribe to newsletters
Step 5: Maintain time gap between two consecutive emails
Step 6: Set up a personalized test campaign
Step 7: Best bonus practices

1. Authenticate your account

With a new email account, the first thing required is account authentication. Authentication makes your account guarded against the spam filters and makes your emails delivered right to the inbox.

There are four essential email authentications:

  • SPF

SPF (Sender Policy Framework) is an authentication technique that creates a record in your DNS (Domain Name System), which lists down all the servers that are authorized to send emails on behalf of a domain. Whenever the recipient’s ESP finds an SPF Authentication from the sender side, it provides a clean chit to the sender’s domain.

  • DKIM

DKIM (Domain Keys Identified Mail) is an authentication method that adds a digital signature with your domain, which prevents email spoofing and makes your email reach the right place.


DMARC (Domain-based Message Authentication, Reporting & Conformance) records to use your SPF and DKIM records to assure the receiver’s ESP that no deceitful activities are associated with the email.

  • Custom Domain

Adding a custom domain to your emails, make your links, and documents look more authentic by providing it with your domain. This makes the sender, as well as the ESP, assure that the links and documents are from an authentic source.

Read this Guide: What are SPF & DKIM Records and How to Set It Up?

2. Send individual emails

The email warm-up process starts by sending manual emails to your friends and colleagues to build a conversation. 

In the beginning, you should send 10-20 individual emails from the new email account. Make sure the initial emails have a consistent engagement, which is going to help you increase the volume of the emails.

With the increase in conversation, your email service provider gets assured about your authentic activities and gradually makes your email account ready for email campaigns. 

During this manual process, make sure you are sending emails to various email services like Gmail, Yahoo, Outlook, iCloud, Godaddy, Zoho, Aol, Exchange and Yandex. This will help you build a good reputation at all the top email services provider’s spam filters. 

PS: Write a personalized subject line in the manual process to get a better response.

3. Maintain conversation threads

Email accounts are not meant just to send messages; you should get some responses.

To achieve maximum deliverability, creating engagement in your warm-up emails is essential. So, start the conversation by sending emails from your other email accounts and reply to those emails from the new one. 

Here having some regular conversations is vital as it’s a continuous process of 8-12 weeks. So if possible, add your new email address on your website for inbound emails and swiftly reply to those to have a better conversation rate.  

This simple process assures the email service provider about your authentic email activities. The continuous email conversation increases your email sending quota and gradually makes your account eligible for sending mass emails.

4. Subscribe to newsletters

If you are in sales, marketing, recruitment or any other profession, there would be a lot of publications sending out weekly newsletters.

Go out and subscribe to a minimum of 10-15 newsletters. Every newsletter needs a confirmation, get back to your inbox and confirm every subscription.

It will validate your account and will increase the email inflow. Regularly receiving emails is equally important than sending to warm your new email account.

5. Maintain time gap between two consecutive emails

Every email service provider has distinct algorithms to check how the emails are sent and received.

So make those algorithms knows that you are not a robot, and avoid sending too many emails at once. If you send a lot of emails continuously, it will affect your domain reputation. 

The best way to avoid it is to keep a time interval of few seconds between two emails while you are warming up your new account.

Avoid sending too many emails at one go; such activities trigger spam filters, which may lead to blocking your account temporarily or permanently.

6. Set up a personalized test campaign

After you have completed 12 weeks of manual warm-up, your account will get ready to send cold emails. You can pick a tool like Saleshandy to send your cold email.

However, it’s good to start small and simple. Begin the first campaign(sequence) with a small list of 20-30 trusted recipients with friends and colleagues added so that you get a response.

  • Personalize your email

When your primary goal is warming up your email account, you need to make your recipients open your email and reply to it. Personalizing your email will do the trick for you. 

Using Saleshandy, write a personalized email and sound like a human. Along with that, create a personalized subject line to have the best open rate. The personalized message is critical to increasing the number of replies.

send personalized cold emails
  • Avoid spammy content

Including spam content in your emails makes your account more vulnerable to the spam filters. Avoid using words like FREE, GRAB, 50%, etc. in your emails, which attracts the attention of spam filters. 

Avoid content that creates an adverse effect on your sender’s reputation. Keep the content clean, simple and plain with limited numbers of links to get the best delivery. 

  • Add unsubscribe link

Even though you are sending a test campaign(sequence) to a small list, it’s advisable to include an unsubscribe link in your email.

While warming up your email account, you should limit every possibility that the recipient gets to spam your emails. Even a single spam report against a new account can negatively affect your reputation.

Adding an unsubscribe link in your emails allows your recipients to choose if they want to receive your emails or not. This feature not only makes your recipients happy but also keeps your emails away from SPAM filters.

7. Best bonus practices

Following the above best practices to warm-up an email account before sending cold emails will help you activate your account’s large list of cold email campaigns.

Below, we are listing some other bonus tips that will be helpful to you for maintaining your sender reputation and email deliverability. 

  • Write like a real human
  • Use limited links in your email content
  • Choose your email service provider wisely according to your need
  • Use limited media files like images, videos and GIF

Method 2: Automate the email warm-up process (recommended) 

This is the easiest way to warm-up your email account as you don’t have to put any manual efforts like the points mentioned above. Tools like Saleshandy completely takes care of this process to grow your email reputation and deliver your emails right to the primary inbox.

Saleshandy is a cold email outreach tool that helps you send successful personalized cold email sequences with high email deliverability. One of its key features for maintaining good email deliverability is email warm-up.

On your behalf, the warm-up feature sends emails and gradually increases the number of emails sent out daily using its smart algorithm. You don’t need to do anything in this process.

Saleshandy send emails to authentic accounts to keep the conversion going to help your grow your domain reputation

How to warm-up an email account using Saleshandy?

Step 1: Sign-up to Saleshandy
Step 2: Navigate to the Email Warm-up tab
Step 3: Connect your email account
Step 4: Enable warm-up 

Step 1:  Sign-up to Saleshandy

Login to your Saleshandy account; if you don’t have one, create here.

Saleshandy sign up page

Step 2: Navigate to the Email Warm-up tab

Now, from the left sidebar, navigate to the email warm-up tab. You will see a dashboard like this.

Add accounts to start the warm-up process

Step 3: Connect your email account

Here you will need to connect your email account if you have not added an account. Simply click on Add a new email account on the top-right to add any Gmail, Microsoft, or SMTP account.  

Step 4: Enable warm-up

Now, you just have to enable the account you want to warm-up. The button is next to the email account. Just activate that. And your email warm-up process has started!

Add your email account to start the warm-up process

Watch how to warm-up your email account using Saleshandy

Benefits of using Saleshandy’s email warm-up

1. Completely automate the warm-up process 

Once you enable the email warm-up feature, the entire warm-up process starts automatically. You don’t need to add anything from your side in this process (except you have already set up your SPF, DMARC, and DKIM authentication).

If you wish, you can change the warm-up settings. You can add the number of emails you want to send each day, increment the number of emails, the maximum number of emails to be sent in a day, reply rate, and sender name. 

Email warm-up setting

2. Email warm-up report 

You can see the performance of your email. You can check the number of emails sent and received in 30 days. You can also switch between different email accounts to view their reports as well. 

Email warm-up report

3. Email Health Score

This warm-up feature helps to improve your email health score. Your email health score gives you a score that can help you predict your email deliverability.

Saleshandy email health score

4. Deliverability percentage

Based on your email health score, the system generates the deliverability percentage of your current domain. This percentage will help to determine the percentage of emails that will reach the primary inbox.

Add your email account to start the warm-up process

When can you stop warming up your email account?

If you’re doing this process manually, it is advisable to stop after 8-12 weeks. And if you’re opting for the automated process, you can stop the process after your email account is fully warmed up. 

Doing this will not hinder your email campaign(sequence) but will create a positive impact.

It will constantly maintain a healthy balance of the email activities to make sure your email deliverability is unaltered.  And also act as an indicator to your email service provider that you’re not spamming the user but are an authentic sender.

Final Words

The complete algorithm restrictions are to keep a hold on spammy content. Following the best practice will help algorithms know that you are a real human being, not a spammer. 

Last but not least, always remember; that it’s easier to build a positive reputation as a sender, rather than improve the reputation of a spammer.


1. What is email warm-up?

The email warm-up is a method of establishing a fresh email account’s reputation and increasing the email sending limit.

2. How to warm up email domain?

A. Sending emails manually to your friends and coworkers to start a conversation is the first step in the email warming process. You should send 10-15 separate emails from the new email address at first. With more conversations, your email service provider becomes confident in your genuine actions and progressively prepares your email account for email campaigns.

B. Use the Saleshandy’s auto warm-up feature. Here on your behalf, Saleshandy sends small batches of emails at first, improving the conversation between each email and building a good domain reputation in the eyes of your ESP.

3. What is IP warm-up?

Warming up your IP allows you to improve the sender’s reputation of your new IP address. The process of progressively raising the volume of emails sent using a dedicated IP address over time is known as IP warming.

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