HubSpot Emails Going to Spam: Fix Deliverability for HubSpot Senders
Your HubSpot campaigns are landing in spam instead of inboxes
Fix within 24 hours.
Check HubSpot sending setup:
In HubSpot, verify your sending domain is connected (Settings > Email Domain)
Check SPF and DKIM authentication status
Review bounce and complaint metrics in HubSpot Analytics
Run a test email to a monitored inbox
What Could Be Causing This?
HubSpot Domain Not Connected or Authenticated
Most CommonHubSpot requires domain connection with SPF/DKIM. Unauthenticated domains fail authentication checks.
How to confirm:
In HubSpot Settings > Email Domain, verify domain shows as "connected" with authentication complete.
HubSpot Shared IP Reputation Issues
Most CommonHubSpot's shared IPs can be damaged by other senders' reputation issues.
How to confirm:
Check Google Postmaster Tools for domain reputation. Contact HubSpot support about IP reputation.
High Bounce Rate from HubSpot List
CommonBounces above 3% damage sender reputation in HubSpot's system.
How to confirm:
Check HubSpot Analytics for bounce rate on recent sends.
Fix Playbook
Step 1: Connect Your Domain in HubSpot with Full Authentication
- In HubSpot, go to Settings > Email Domain
- Add your domain and verify ownership
- Configure SPF and DKIM records as HubSpot specifies
- HubSpot validates authentication within 24-48 hours
- Once "connected", you're using HubSpot's sending infrastructure with your domain
HubSpot-Specific Note:
HubSpot's domain connection UI is intuitive — follow the step-by-step wizard for quickest setup.
Step 2: Clean Your HubSpot Contact List
- In HubSpot, filter for bounced contacts
- Review and delete hard bounces
- Create a suppression list for complained addresses
- Target only engaged contacts for next send
HubSpot-Specific Note:
HubSpot's contact database is integrated — manage suppressions directly in your lists.
Prevention Checklist
- Keep domain connected in HubSpot
- Monitor bounce rate weekly in HubSpot Analytics
- Remove unengaged contacts every 90 days
- Use HubSpot's list segmentation to target high-engagement groups
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