How Hubspot Users Can Avoid Sending Graymail

If you send marketing email with Hubspot, understanding graymail is critical for protecting your sender reputation and keeping your campaigns effective. Graymail is email that contacts have opted in to receive but no longer engage with, which can quietly damage deliverability over time.

This guide explains what graymail is, why it hurts performance, and how to use the tools in your account to reduce unengaged contacts and keep your audience active.

What Is Graymail in Hubspot?

Graymail refers to marketing messages that are technically permission-based but are ignored by recipients. The emails land in the inbox, but contacts do not open or click them. Over time, inbox providers may treat these emails as low-quality, which can affect overall deliverability for all sends from your domain.

In practical terms, graymail often comes from contacts who:

• Signed up for your list months or years ago
• Stopped opening or clicking your emails
• Never unsubscribed, but no longer pay attention

Within the Hubspot platform, managing graymail is about identifying these unengaged contacts and choosing when to stop including them in ongoing campaigns.

Why Graymail Matters for Hubspot Email Performance

Ignoring graymail can cause subtle but serious problems. When you continue to send to contacts who never engage, mailbox providers see low engagement signals for your messages and may start to filter more of your email to spam or other low-priority inbox tabs.

The impact includes:

• Lower overall open and click rates
• Higher risk of spam filtering for future campaigns
• Wasted sending volume on people who are unlikely to convert
• Misleading performance reporting if your list is bloated with inactive contacts

Cleaning up graymail using available tools is one of the fastest ways to improve the health of your database and protect your sender reputation.

How Hubspot Identifies Unengaged Contacts

The software can help you find contacts who are likely receiving graymail. It does this by looking at each person’s recent engagement history and how long they have been on your list.

Generally, an unengaged contact is someone who:

• Was added to your database long enough ago to have received multiple campaigns
• Has not opened or clicked recent emails over a defined window of time
• May have previously engaged, but has since become inactive

The platform can automatically track these behaviors across marketing emails sent from your account. That tracking allows you to create lists or use built-in options to exclude unengaged contacts from ongoing sends.

Using Hubspot Settings to Avoid Sending to Unengaged Contacts

To reduce graymail, you can use settings and segmentation options when building each marketing email. The goal is to send only to people who show signs of current interest.

Step 1: Enable the Graymail Suppression Option in Hubspot Email

When building or editing a marketing email, you can use a built-in checkbox that suppresses unengaged contacts from the send.

1. Navigate to your marketing email tool in your account.
2. Create a new regular email or edit an existing draft.
3. Go to the sending or recipients section of the email editor.
4. Locate the option that allows you to exclude unengaged contacts.
5. Check this option before scheduling or sending the email.

By enabling this feature, the system will automatically skip sending to contacts it has identified as unengaged, which limits graymail without requiring you to manually build complex lists.

Step 2: Create Segments for Active and Inactive Contacts

Beyond one-off suppression, it is helpful to maintain clear segmentation in your database. You can create lists that separate engaged contacts from those who appear inactive.

To segment your database, you can:

• Define active contacts as those who opened or clicked a marketing email within a recent time period, such as 90 days.
• Define inactive contacts as those who have not engaged during that period.
• Use list criteria based on email activity properties tracked in your account.

Once lists are in place, you can target engaged contacts for regular campaigns and design specific re-engagement workflows for inactive segments.

Step 3: Run Re-Engagement Campaigns in Hubspot

Instead of permanently ignoring inactive contacts, you can attempt to re-engage them with a focused campaign. This should be clearly distinct from your usual promotional sends.

A typical re-engagement strategy can include:

1. Building a dedicated email that acknowledges the lack of recent activity.
2. Offering a strong reason to stay subscribed, such as exclusive content or a clear value proposition.
3. Asking contacts to confirm their interest, update preferences, or choose specific topics.
4. Sending one or two follow-up reminders to contacts who still do not respond.

After this campaign, you can choose to remove from active marketing sends any contacts who still do not open or click. This keeps your list lean and focused while giving inactive subscribers a final chance to stay connected.

Best Practices for Long-Term Graymail Prevention in Hubspot

Preventing graymail is an ongoing process. Applying the right practices will help you avoid a buildup of unengaged contacts in the future.

Send Relevant, Expected Content

Contacts are more likely to stay engaged if your emails match what they expected when they subscribed. Consider:

• Aligning your email content with your original signup promises.
• Segmenting by interest, lifecycle stage, or past behavior.
• Using personalization tokens and dynamic content (where appropriate) to keep messages relevant.

Control Frequency and Timing

Even valuable content can become overwhelming if you send too often. Review your sending frequency to ensure contacts are not flooded with messages.

• Monitor unsubscribe and spam complaint rates after send frequency changes.
• Allow contacts to choose the frequency or categories they prefer.
• Stagger campaigns so that contacts do not receive multiple messages in a short period without clear reason.

Regularly Review Unengaged Contacts

Set a recurring schedule to review unengaged segments in your account. For example:

• Monthly: Check list size of inactive contacts and recent engagement patterns.
• Quarterly: Run a re-engagement campaign or confirm suppression settings.
• Annually: Consider archiving or fully excluding long-term inactive contacts from marketing sends.

By treating list hygiene as an ongoing task, you prevent graymail from becoming a large-scale deliverability problem.

Learn More About Graymail and Hubspot Tools

For detailed, product-specific instructions and the most up-to-date descriptions of unengaged contact logic, review the official documentation provided by the platform. You can find more information in the original resource on graymail and unengaged contacts at this Hubspot knowledge base article.

If you are building a broader strategy around list growth, email optimization, or automation, you may also want expert support beyond configuration. A consultancy such as Consultevo can help design sustainable programs for acquisition, nurturing, and retention that keep your messages out of graymail territory.

By combining strong content, sensible frequency, and consistent use of suppression tools, you can use Hubspot to send fewer unwanted emails, protect your sender reputation, and focus on contacts who truly want to hear from you.

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