Hupspot email send stopped guide

When a marketing email send is stopped in Hubspot, it can delay campaigns and impact revenue. This guide explains every reason a send might be halted and how to fix each issue step by step so you can safely resume sending.

Why Hubspot may stop a marketing email send

Hubspot automatically protects sender reputation, contact preferences, and compliance rules. If any safeguard is triggered, a scheduled or immediate send can be stopped or partially sent.

Common categories include:

• Eligibility checks on contacts
• Subscription and unsubscribe rules
• Bounce, spam, and global exclusion rules
• Configuration or system issues

The platform also provides a detailed explanation directly on each affected email record.

How to find the stopped send reason in Hubspot

You can always review why Hubspot blocked a send on the specific email:

1. Open your marketing email tool in the navigation.
2. Locate the email marked as stopped in the listing.
3. Click into the email to open its details.
4. Check the banner, alert, or status panel for the exact stop reason.

This message describes which contacts were blocked and what rule was applied.

Hubspot contact eligibility and send rules

Contact eligibility is one of the most common reasons a send is halted. Hubspot evaluates every recipient before sending.

Hubspot and unsubscribed contacts

If a contact has unsubscribed from a subscription type, Hubspot will not send email on that subscription to them. A send can be stopped or partially blocked when:

• The email is assigned to a subscription type the contact opted out of.
• Your send list mixes subscribed and unsubscribed contacts.

To resolve this, you can:

• Confirm the correct subscription type is used.
• Use lists filtered to contacts who are subscribed.
• Review subscription preferences in the contact record if needed.

Hubspot global unsubscribes and never-send contacts

Some contacts are globally opted out and must not receive marketing emails. Hubspot automatically excludes:

• Contacts marked as globally unsubscribed
• Contacts set to never receive marketing emails

No marketing email can override these safeguards. You should instead respect their preferences and consider other channels.

Hubspot bounced and invalid email addresses

Hubspot prevents sending to addresses with a history of hard bounces or invalid states. A send is stopped for specific contacts when:

• The email address previously hard bounced.
• The address is syntax-invalid or has been flagged as undeliverable.

To fix this, you can:

• Correct obvious typos in the email address field.
• Ask the contact to confirm a new address via another channel.
• Allow Hubspot to continue excluding risky addresses automatically.

Hubspot spam, low engagement, and safety checks

Deliverability and reputation controls can also stop or limit a send.

Hubspot high-risk sending patterns

When Hubspot detects a high risk of spam complaints or bounces, it may prevent the full send. Indicators include:

• Very large lists with many unengaged contacts
• Sudden spikes in sending volume
• Recent poor performance on similar sends

Reduce risk by:

• Sending only to engaged segments
• Gradually increasing volume
• Improving list hygiene and removing inactive contacts

Hubspot graymail and low-engagement exclusions

Graymail filters may exclude contacts who rarely open or click emails. Hubspot offers settings to not send to unengaged contacts.

If many contacts are unengaged and the setting is enabled, your effective send size may shrink. Review your email configuration and decide whether to keep or relax this protection.

Permission, compliance, and policy blocks in Hubspot

Compliance and permission rules can fully halt a send when something conflicts with platform or legal requirements.

Hubspot subscription type and legal basis

If your account uses subscription types and legal bases, Hubspot evaluates whether you have permission to send a given email. Problems arise when:

• No appropriate legal basis is recorded for a contact.
• The email type does not match the permissions you documented.

To resolve:

• Update subscription and consent records when you obtain proper permission.
• Ensure the email is assigned to the correct type (for example, transactional vs promotional).

Hubspot content and system policy violations

Certain content or configuration patterns may breach system policies. In those cases, Hubspot can block the send and explain the policy in the alert.

You should:

• Read the full policy reference linked in the message.
• Edit the email content or recipients as required.
• Contact support if you believe the block is in error.

How to fix a stopped marketing email in Hubspot

Once you understand the reason, you can apply a structured troubleshooting process.

Step 1: Review the stopped email details in Hubspot

Start by confirming the status and details:

1. Open the specific email record in your marketing email tool.
2. Capture the exact error text and any affected contact counts.
3. Note which lists or segments were targeted.

Step 2: Clean and segment your lists

List cleanup is often the fastest route to a successful re-send:

• Remove known hard bounces and invalid addresses.
• Exclude globally unsubscribed or never-send contacts.
• Create a segment of only subscribed and engaged recipients.

After cleaning, clone the original email and send to this refined list.

Step 3: Validate subscription types and preferences

Ensure that:

• The email is attached to the correct subscription type.
• Your list is filtered to contacts subscribed to that type.
• Any required legal basis is recorded for the contacts.

Where needed, update contact preferences before attempting another send.

Step 4: Monitor performance after resending in Hubspot

Once you send again, monitor:

• Opens and clicks
• Bounce rates
• Spam complaints

Use this data to further refine lists and cadence inside Hubspot so future sends are less likely to be stopped.

Additional resources for Hubspot email sending

You can read the original product documentation for more specific examples and screenshots here: Hubspot marketing email send was stopped.

For broader strategy help, implementation planning, and optimization of your campaigns, you can also work with a specialist agency such as Consultevo.

By understanding how Hubspot evaluates contact eligibility, permissions, and risk, you can design cleaner lists, safer workflows, and more reliable campaigns that reach the right people at the right time.

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