- Symptom
- Customers report your emails land in spam or never arrive, and open rates have dropped.
- Likely cause
- Missing or broken SPF, DKIM and DMARC records, a shared sending domain, or sending to old and unengaged contacts all hurt inbox placement.
Applies to: Email campaigns, Workflow email actions, Dedicated sending domains
How to fix it
Check your authentication records
Look up your domain's SPF, DKIM and DMARC records and confirm each passes. A missing DMARC record alone can push mail to spam at major providers.
Use a dedicated sending domain
Send from a subdomain of your own domain rather than a shared default domain.
Clean your list
Stop sending to contacts who have not opened or clicked in months, and remove bounced addresses.
Ramp volume slowly
After fixing records, increase sending volume gradually over a couple of weeks.
FAQ
How quickly will deliverability improve?
Record fixes take effect once DNS updates, but reputation recovers over weeks of consistent, engaged sending.
Should I send from a free email address?
No. Free mailbox addresses fail authentication when sent through a platform and are often filtered.