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All Things Email Deliverability: For HubSpot

Email Deliverability Guide

Email deliverability is a critical aspect of any successful email marketing campaign. Ensuring your emails land in your recipients' inboxes is essential for maximizing engagement, driving conversions, and maintaining a strong sender reputation. HubSpot, as one of the leading marketing automation platforms, offers a variety of tools and features to help improve email deliverability. In this comprehensive guide, we'll dive into everything you need to know about email deliverability when using HubSpot, including best practices, tips, and troubleshooting.

Understanding Email Deliverability

Email deliverability is the measure of how successfully your emails are delivered to recipients' inboxes without bouncing or being marked as spam. Deliverability is influenced by various factors, including the sender's reputation, email content, and recipient engagement. Maintaining high deliverability rates is crucial for email marketing success, as it directly impacts your campaign's return on investment (ROI) and your brand's credibility.

HubSpot's Role in Email Deliverability

HubSpot is a powerful all-in-one marketing platform that offers a robust email marketing tool. It provides various features that help improve email deliverability, such as:

Email authentication: HubSpot uses Sender Policy Framework (SPF), DomainKeys Identified Mail (DKIM), and Domain-based Message Authentication, Reporting, and Conformance (DMARC) to verify your domain and prevent email spoofing.

List management: HubSpot allows you to segment your contacts into different lists, ensuring that your emails are targeted and relevant to your recipients.

Email templates and responsive design: HubSpot offers a variety of customizable email templates that automatically adjust to different devices, helping you create visually appealing emails that encourage engagement.

Analytics and reporting: HubSpot's analytics tools enable you to track email performance and engagement, allowing you to refine your strategy and improve deliverability.

Best Practices for Email Deliverability on HubSpot

To achieve optimal email deliverability using HubSpot, consider the following best practices:

Verify your domain: Ensure that your domain is verified and authenticated with SPF, DKIM, and DMARC to build trust with email providers and prevent spoofing.

Maintain a clean email list: Regularly update your contact list by removing invalid addresses, hard bounces, and unengaged subscribers.

Use double opt-in: Implement a double opt-in process for new subscribers to confirm their interest and reduce the risk of spam complaints.

Segment your audience: Create targeted email campaigns based on recipients' interests, behavior, and demographics to boost engagement and deliverability.

Test your emails: Utilize HubSpot's preview and testing tools to ensure your emails display correctly across different devices and email clients.

Monitor your sender reputation: Keep track of your sender score, spam complaint rates, and bounce rates to identify potential deliverability issues and take corrective action.

Essential Tips for Improving Email Deliverability on HubSpot

In addition to the best practices mentioned above, consider these essential tips to further improve your email deliverability when using HubSpot:

Personalize your emails: Include personalized content, such as the recipient's name or other relevant information, to create a more engaging email experience.

Craft compelling subject lines: Write subject lines that are concise, relevant, and enticing, avoiding the use of all caps, excessive punctuation, or spammy words.

Optimize your preheader text: Use the preheader text to give recipients a brief overview of your email's content, encouraging them to open the email.

Balance text and images: Use a mix of text and images in your emails to create visually appealing content while avoiding spam filters that might flag image-heavy emails.

Use a consistent sending schedule: Establish a regular email sending schedule to help recipients recognize and anticipate your emails, improving engagement and deliverability.

Set up a custom tracking domain: Utilize a custom tracking domain to mask HubSpot's tracking links, which can help reduce the likelihood of your emails being flagged as spam.

Implement email throttling: Spread out the sending of large volumes of emails over a specific time frame to avoid overwhelming email providers and improve deliverability rates.

Troubleshooting Email Deliverability Issues on HubSpot

Even with the best practices in place, you may encounter email deliverability issues. If you notice a decline in your deliverability rates or an increase in bounces and spam complaints, take the following steps to troubleshoot and resolve the problem:

Analyze your email metrics: Review your email analytics within HubSpot, paying close attention to bounce rates, spam complaint rates, and engagement metrics to identify potential issues.

Inspect your content: Ensure your email content is relevant, valuable, and free of spammy elements, such as misleading subject lines, excessive promotional language, or hidden text.

Review your email list: Verify that your contact list is clean and up-to-date, removing any invalid addresses or contacts who haven't engaged with your emails in a long time.

Check your domain authentication: Confirm that your domain is properly authenticated with SPF, DKIM, and DMARC, and ensure your DNS records are correctly configured.

Test email deliverability: Use HubSpot's email deliverability testing tools or third-party services to test your emails' deliverability and identify any potential issues.

Seek expert help: If you're unable to resolve the issue on your own, consider reaching out to HubSpot's support team or consulting an email deliverability expert for assistance.


Email deliverability is a vital component of any successful email marketing campaign. By understanding its importance and following best practices, you can optimize your email deliverability when using HubSpot. Implementing the tips and strategies outlined in this comprehensive guide will help ensure that your emails consistently reach your recipients' inboxes, driving higher engagement and ultimately, better results for your email marketing efforts.

Make sure to reach out to us if you're experiencing deliverability issues within your HubSpot emails.


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