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Introduction
In the realm of outbound marketing, cold emails and social outbound DMs stand as potent tools for connecting with potential clients. However, before launching into cold email campaigns, it’s critical to prepare your domain to ensure high deliverability rates and avoid being flagged as spam. This process, known as domain warm-up, is essential for building your domain's reputation and ensuring your emails land in the inbox rather than the spam folder.
1. Understanding Domain Warm-Up
Domain warm-up is the process of gradually increasing the number of emails sent from your new domain to establish a positive sending reputation with email service providers (ESPs). This is crucial because sudden spikes in email volume from a new domain can trigger spam filters, resulting in poor deliverability and potentially blacklisting your domain.
2. Steps to Warm-Up Your Domain

a. Buy Domains
As Nick Abraham suggests, you should start by purchasing domains. Nick mentions using Porkbun, but you can opt for any domain registrar you prefer. For each client, it's recommended to buy 10 domains and set up 2 inboxes for each domain. This setup helps distribute the email volume and minimizes the risk of any single domain being flagged as spam.
b. Setting Up Records: DMARC, DKIM, SPF
To enhance your domain's deliverability, it’s crucial to configure DMARC, DKIM, and SPF records. These records help authenticate your emails, proving to ESPs that your emails are legitimate and not spoofed.
- DMARC: Domain-based Message Authentication, Reporting & Conformance is a protocol that allows email domain owners to protect their domain from unauthorized use.
To know more about DMARC, you can visit:
What is DMARC and how to set up?- DKIM: DomainKeys Identified Mail adds a digital signature to your emails, verifying that they haven’t been altered in transit.
- SPF: Sender Policy Framework is an email authentication method designed to detect forging sender addresses during the delivery of the email.
c. Creating Inboxes
For each domain, create 2 inboxes using email services like Outlook or Gmail. This step ensures you have multiple points of sending and receiving emails, which is beneficial during the warm-up process.
d. Warm-Up Settings
Once your domains and inboxes are set up, you need to configure your warm-up settings. This involves gradually increasing the number of emails sent per day. Nick provides a comprehensive warm-up schedule to follow:
3. The Importance of Gradual Scaling
To build a positive reputation, start with a low volume of emails and gradually increase it over time. For example, you might start by sending 10 emails per day from each inbox and then increase the volume by 10% each week. This gradual increase helps establish your domain as a reputable sender, reducing the risk of being flagged as spam.
4. Monitoring and Adjusting Your Strategy
Throughout the warm-up process, it's essential to monitor your email deliverability and engagement metrics. Track metrics such as open rates, click-through rates, and bounce rates to ensure your emails are being successfully delivered and engaged with.
If you notice any issues, such as a sudden drop in deliverability, be prepared to adjust your strategy. This might involve reducing your email volume temporarily or tweaking your email content to improve engagement.
5. Real-World Tips and Best Practices
a. Use Multiple Domains
Using multiple domains helps distribute your email volume, reducing the risk of any single domain being flagged as spam. It also provides a safety net, so if one domain gets blacklisted, your entire email campaign isn’t compromised.
b. Personalize Your Emails
Personalization can significantly improve your email engagement rates. Tailor your email content to the interests and needs of your recipients. This not only helps with deliverability but also increases the chances of your emails being opened and acted upon.
c. Maintain a Clean Email List
Regularly clean your email list to remove invalid or unengaged email addresses. This helps improve your sender reputation and ensures that your emails are reaching active, interested recipients.
d. Monitor Feedback Loops
Many ESPs offer feedback loops that provide information about recipients who mark your emails as spam. Monitoring these feedback loops can help you identify and address any issues that may be affecting your deliverability.
Conclusion
Domain warm-up is a critical step in ensuring the success of your cold email campaigns. By gradually increasing your email volume, setting up proper authentication records, and monitoring your email metrics, you can build a positive sending reputation and achieve higher deliverability rates. Follow these steps and best practices to ensure your emails land in the inbox and drive the results you’re aiming for.
Call to Action
Ready to launch your cold email campaign? Start by warming up your domain using the steps outlined in this guide. If you have any questions or need further assistance, feel free to reach out in the comments below or download our comprehensive domain warm-up checklist to get started.