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How to Warm Up an Email Domain – A Complete Blueprint

Warm up email domain

One of the first steps an email marketer should take is to warm up email domain. 

This is a necessary start because mailbox providers are suspicious of new email domains sending messages to their users. They take strong measures to protect users from email spam, which makes it tough for new senders to reach the inbox.

A good email domain warmup process can help you avoid being flagged as spam and ensure your email deliverability rates are the best they can be.

Below we break down what the email domain warmup process is for and how to warm up a domain correctly. But first, here’s why we insist you adopt it.



Why Email Domain Warmup is Essential

Warming up a new email domain is not a fancy new email marketing trend; it’s critical. 

It’s an important step directly impacting the success of different types of email campaigns. If you’re using a new domain or have been inactive for a while, skipping the warm-up phase can have huge consequences. 

Mailbox providers view unwarmed domains as potential sources of spam; skipping email domain warm-up can: 

Email domain warming is a strategic approach email senders use to establish a positive reputation with mail providers. 

By learning how to warm up domain, you ensure your emails go to people’s inboxes, not spam. The main goal is to demonstrate to mailbox providers your email domain is legitimate, trustworthy, and not associated with spam email senders.

Warming up an email domain is the foundation of any email marketing effort; it helps ensure you get more emails into the primary inbox.

Now we get to a topic you’ve been waiting for: how to warm up an email domain!


How to Warm Up a Domain for Email Marketing

Many email service providers (ESPs) let you warm up email marketing operations but you can also do it yourself. The alternative is domain warmup tools, which cost money. 

So what is email warm up and what does it require you to do?

You’ll need to:

  • Gradually increase your sending volume,
  • Segment your email list,
  • Maintain a consistent sending schedule,
  • Craft engaging email content to encourage recipient interactions,
  • Be patient,
  • Tune in every day to check if everything is going the way it should.

Below is a step-by-step guide on how to warm up domain for free.


Warm Up Email Domain for Free

If you’re strapped for cash, splurging on a domain warmup service may not be the best idea, especially when you can DIY it. Executing an email marketing warm up process is doable with some effort.

The free warm up email method is a practical approach, but warming up email domain without tools will require more time and effort. 

Follow these 5 steps to warm up a domain for free.

1. Start Small With a Gradual Volume Increase

We recommend you start with around 100 contacts on day 1 and increase by approximately 10% per day. When you see positive interactions, slowly increase your sending volume. This kind of approach signals to ESPs you are a real sender who’s trying to warm up an email domain.

2. Divide your Email List into Segments Manually

A solid email segmentation strategy is critical here. 

Divide your email list into segments based on engagement levels. Begin by sending emails to your most active and responsive email marketing subscribers; once you see positive feedback, gradually expand your outreach to those who engage less.

3. Stick to a Consistent Sending Schedule

Establish a regular sending schedule. Also, figure out the best time to send emails.

Consistency in email-sending patterns helps build trust with ESPs during the warm-up phase. You will need to show up and send those emails manually.

4. Engage With Relevant Content

Write and design relevant content that encourages recipients to interact with your emails. High engagement rates play a major role in improving your domain reputation.

5. Track and Adapt

And that’s how to warm up your email domain for free.

Free email warm-up methods work, but the paid ones can streamline the domain warm up process and get consistent results. 

Although we understand the need for manual domain warm-up, we don’t recommend it. You won’t be able to detect every little issue that may arise, unlike specially designed software. So let’s check out paid warmup tools next.

Domain Warmup Tools

Domain warmup tools are paid software applications or services designed to automate and streamline the process of warming up domains. 

They address the critical need to avoid spam filters and ensure your emails reach intended inboxes. An email warming service can help get your email marketing operation up and running.

If you’re losing sleep worrying about how to warm up email domains, these tools are the answer.

The core functions include:

  1. Automated email sending and receiving: These tools send and receive emails from your domain, simulating natural email activity. They interact with a network of other warmed-up inboxes, creating a pattern of legitimate communication.
  2. Engagement simulation: They often automate actions like opening emails, replying to messages, and marking emails as “not spam.” This simulates genuine engagement.
  3. Reputation monitoring: Many tools provide insights into your domain’s reputation, including deliverability rates, spam scores, and blacklist monitoring. 
  4. Gradual ramp-up: They automate the process of gradually increasing your email sending volume, which is essential for avoiding red flags with email providers.

Such tools can help you warm up email address and domain both.

Let’s look at the four most popular tools used by email marketers to warm up email domains. These tools also show you how to warm up email address.

Warmup Inbox

Warmup Inbox
Warmup Inbox website

Warmup Inbox focuses on simulating genuine human interactions with your emails through a network of real inboxes, improving your sender reputation. It offers features like blacklist monitoring and AI-generated warm-up emails, providing a comprehensive approach to email deliverability.

Mailwarm

Mailwarm
The Mailwarm homepage

Mailwarm is an email warm up service with automated engagement and a user-friendly interface. 

It’s designed for those seeking a straightforward solution to improve email deliverability with basic monitoring and automated reply generation.

Mailreach

Mailreach website
Mailreach website

Mailreach utilizes AI-driven algorithms to optimize your warm-up process, providing detailed analytics and custom warm-up sequences. It is a tool for users who want deep analytics and AI-driven results.

Warmy.io

Warmy io
Warmy.io’s homepage

Warmy.io uses AI-powered content generation, and topic-specific warmups, to make the warmup process more realistic. This tool is focused on creating engagement patterns that resemble real human interaction and allows for more specific warmup actions.


How to Warm Up a New Email Domain

Did you just get your hands on a shiny new email domain? 

For your email domain warm up, you should focus on actions that will help you establish trust with ESPs. You must also focus on the accuracy of your segmentation methods and email list hygiene

There are different aspects of your email strategy to focus on, covered in the sections below.

Start Slow and Steady

Begin your warm-up process by gradually increasing your email volume. Start at 100 contacts and increase by approximately 10% per day. Sending a massive volume of emails right from the start can trigger spam filters. Begin with a small batch of emails and progressively work your way up.

Sort Your Email List

It helps to divide your email list into segments based on recipient engagement levels. Focus your initial emails on your most active and responsive subscribers. As you observe positive interactions, gradually expand your outreach to less engaged segments.

Focus on Content

Write interesting emails people want to click on and read. Relevant messages not only encourage clicks but also reduce the likelihood of recipients marking your messages as spam. Personalization and targeted content can boost your engagement rates.

Monitor Email Metrics

Regularly monitor email metrics. They will tell you if you’re doing everything right or not. If the overall engagement rate is low, you’ll need to make some adjustments. 

Maintain Consistency

Look ahead and create an email content calendar to stick to. Sending emails at odd hours and overwhelming recipients one day, while stretching out the follow-up messages for too long would be wrong. Be clear and consistent, which will show mailbox providers you’re a trusted sender.

Be Flexible With the Daily Volume

It’s okay to reduce the sending volume per day if the metrics are trending in the wrong direction in terms of opens and clicks. You can increase it when the metrics start showing good results.

Identify the Emails That Are Performing Well

If possible, identify which emails are performing the best — email A/B testing can help. This will help you know what works and what doesn’t when you start a new campaign.

Be Ready to Stop if Needed

Sometimes, things won’t go as planned. And if the engagement drops and nothing changes, the best strategy is to stop sending emails. Instead, analyze your current email marketing strategy. This will help you later on when you start over.


How Long Does It Take to Warm Up Email Domain?

It’s important to set expectations before we discuss how to warm up email domain.

There is no fixed timeframe. 

It depends on several factors:

  1. The age and the reputation of your domain,
  2. Your sending practices,
  3. The email engagement from your audience.

Brand-new domains with no prior email history typically need more time. You can start by sending a minimal volume of emails and gradually increasing the quantity as you track email engagement metrics. You may need a few weeks of warming up.

Established domains with a positive sending history often go through the warm-up phase more quickly. If your domain has maintained good engagement, it may only take a few weeks to prove your legitimacy to mail services.


Things to Avoid When Warming Up Your Email Domain

There are pitfalls you should avoid to ensure a smooth and effective process when warming up your email domain:

  • Don’t rush: Sending a large volume of emails too quickly and too early can raise red flags; take your time.
  • Avoid sending to cold lists: Avoid sending emails to inactive or outdated email lists during the initial warm-up phase. 
  • Don’t neglect segmentation: Failing to segment your email list properly can harm your warm-up process.
  • Avoid inconsistent sending patterns: Inconsistency in your email sending schedule can confuse mail service providers. Stick to a consistent sending pattern.
  • Don’t overlook content quality: Poorly written or irrelevant email content can lead to recipients marking your messages as spam.
  • Avoid ignoring metrics: Neglecting to track email metrics is a mistake; they will give you all the insights you need for potential adjustments.
  • Don’t share IP addresses with shady senders: Never share your IPs with bad senders. Ensure other senders sharing your IP space are clean and trustworthy.
  • Avoid purchased email lists: Never buy email lists as a shortcut to building a subscriber base. These lists often contain outdated or unverified addresses. 
  • Don’t ignore feedback loops: Email service providers offer feedback loops that notify you of spam complaints.
  • Don’t hide unsubscribe options: Always include a clear and visible one-click unsubscribe option in your emails.

How Domain Warmup Affects Email Deliverability

After successfully completing the warm-up phase for your email domain, you can expect significant positive changes in your email deliverability.

Here are the results you can expect if you do or don’t warm up your email domain properly:

If you warm up your email domain ✅If you don’t warm up your email domain ❌
Improved sender reputationPoor sender reputation
Decreased bounce ratesHigh bounce rates
Higher engagementLow engagement
Reduced spam complaintsIncreased spam complaints
Warm-Up Email Domain Expected Results

ESPs view warm-up as a sign of trustworthiness, and a positive sender reputation built during this phase gives you higher engagement rates. 


Warm Up Domain for Cold Email Marketing

Warming up your email domain is crucial for ensuring your cold email campaigns reach their intended recipients. 

A gradual ramp-up builds a positive sender reputation with email providers, preventing your messages from landing in spam folders. This process ultimately increases your deliverability rates and maximizes the effectiveness of your outreach efforts.

How to Warm Up Your Domain for Cold Emails

Follow these 10 steps to warm up your email domain for cold email marketing:

  1. Set up essential authentication records: Ensure your domain has SPF (Sender Policy Framework), DKIM (DomainKeys Identified Mail), and DMARC (Domain-based Message Authentication, Reporting & Conformance) records properly configured. 
  2. Start with a small volume of emails: Begin by sending a very small number of emails daily, such as 10-20. 
  3. Send emails to engaged contacts first: Initially, focus on sending emails to friends, family, colleagues, and opt-in email subscribers. Encourage them to reply to your emails, mark them as “not spam,” and add your email to a safe senders list.
  4. Utilize a warm-up service: Consider using a dedicated email warm-up service.
  5. Maintain consistent sending patterns: Avoid sudden spikes or drops in your email volume. 
  6. Monitor your email deliverability: Regularly check your spam folder, use email deliverability tools, and use Google Postmaster Tools or similar services.
  7. Focus on top-quality content: Ensure your emails are relevant, personalized, and engaging. 
  8. Encourage replies and engagement: Prompt recipients to reply to your emails by asking questions or providing valuable information. 
  9. Gradually introduce cold email campaigns: After a few weeks of consistent warm-up, start incorporating your cold email campaigns. 
  10. Maintain good list hygiene: Regularly clean your email list by removing inactive or invalid email addresses

Want a stress-free warm-up experience? Here’s the best email warmup service you can go for.


Campaign Refinery is the Best Email Warmup Service

At Campaign Refinery, we insist on domain authentication, we scrub your list clean, we guide you through all the important processes, and we can help you conduct a smart domain warm-up as well! We’re the perfect warmup email platform.

Campaign Refinery offers you:

And did we mention we have the best email deliverability rates in the industry?

Unlock elite email performance and apply to become one of the select clients of our premium service! 

Email Marketing Guide on Warming Up IPs

To show you how you should warm up your domain, we want to share some of our precious knowledge with you through The Inbox Formula. 

In this extensive guidebook, you will learn how to perform actions that will instantly increase your email deliverability. The strategies presented in The Inbox Formula are what we use every day and the industry insights will equip you with the expert knowledge you need to run a successful email marketing operation. The guide contains a detailed blueprint dedicated to domain warm-up!

Our readers report instant improvement after implementing these strategies and they claim their lead signups multiplied by as much as 8X!

You can do this yourself and we are giving it to you completely free of charge. 

Learn how to improve email deliverability and warm up your email domain using The Inbox Formula today!


FAQ

What is a Domain Warm Up Service?

A domain warm-up service automates the process of building a positive sender reputation by simulating natural email activity.

What Features Does a Domain Warmup Service Offer?

Domain warm-up services typically offer automated email sending, engagement simulation, and reputation monitoring.

What is Email Warming?

Email warming or domain warming is the practice of gradually increasing email sending volume to establish a positive sender reputation with email providers.

How to Warm Up an Email Address?

The email warm up process for an address involves gradually increasing sending volume, engaging with replies, and ensuring proper email authentication.

How to Warm Up Email Accounts?

Warming up email accounts involves consistent, low-volume sending and positive engagement to build trust with mailbox providers.

How Long Do You Need to Warm Up an Inbox?

Inbox warm-up typically requires several weeks, with the duration depending on sending volume and engagement levels.

What is a Warm Up Email?

A warm-up email is a message sent as part of a domain or inbox warm-up strategy, designed to simulate genuine engagement.

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