Klaviyo Emails Going to Spam: Diagnosis & Fix for Klaviyo Senders
Your Klaviyo campaigns are landing in the spam folder instead of inbox
Act within 24 hours — every hour in spam costs revenue.
Check these Klaviyo-specific settings:
In Klaviyo, verify your sending domain is authenticated (Settings > Sender Domains)
Verify DKIM, SPF, and DMARC are all in "Verified" status
Check if Klaviyo moved you to a new shared IP pool recently
Review bounce and complaint rates in Klaviyo Analytics
What Could Be Causing This?
Klaviyo DKIM Not Verified
Most CommonIf your Klaviyo DKIM is not verified or properly configured, authentication fails.
How to confirm:
Go to Klaviyo Settings > Sender Domains. Check if your domain shows green checkmarks for DKIM, SPF, DMARC.
Klaviyo Shared IP Pool Reputation Damage
Most CommonIf Klaviyo's shared IP pool you're on has low reputation, your emails filter to spam.
How to confirm:
In Klaviyo, check Account > Sending IPs. Are you on shared or dedicated IPs? If shared, check if pool reputation is good.
Klaviyo Account Sent Too Much to Unengaged List
CommonKlaviyo accounts that send to purchased lists or unengaged segments damage the shared IP pool for everyone.
How to confirm:
Check Klaviyo Analytics — bounce and complaint rates. Did you import a new list recently?
List Quality Issues in Klaviyo
CommonHigh bounce or complaint rates in Klaviyo damage reputation quickly.
How to confirm:
Check Klaviyo Analytics > Campaign Performance. Look for bounce rate spikes.
Fix Playbook
Step 1: Verify All Authentication in Klaviyo
- In Klaviyo, go to Settings > Sender Domains
- Verify your domain is listed
- Check that DKIM shows "Verified" (green checkmark)
- Check that SPF and DMARC show "Verified"
- If not verified, click "Verify Now" and wait for Klaviyo to check your DNS records
- DNS can take 15 min to 48 hours to propagate
Klaviyo-Specific Note:
Klaviyo provides easy verification UI — no manual DNS work needed if you own the domain.
Step 2: Request Dedicated IP in Klaviyo (If High Volume)
- If you send 100K+/month, contact Klaviyo support and request dedicated IP
- Dedicated IPs isolate your reputation from shared pool problems
- Dedicated IP requires warm-up in Klaviyo (gradual volume increase)
- Klaviyo guides you through warm-up process
Klaviyo-Specific Note:
Klaviyo dedicated IPs are reputation-clean and include warm-up support.
Step 3: Clean Klaviyo List & Remove Bounces
- In Klaviyo Analytics, check bounce report
- Remove hard bounces: Klaviyo auto-removes after 1 bounce, but verify in Suppressions
- Go to Profiles > Suppressions and review hard bounces
- Create a segment for engaged subscribers (opened in last 60 days) and send only to them
- Reduce sending frequency until engagement improves
Klaviyo-Specific Note:
Klaviyo suppression lists are automatic, but review them manually to ensure quality.
Step 4: Improve Engagement via Klaviyo Segments
- In Klaviyo, create a segment: opened_any_campaign(days: 60)
- Send only to this "warm" segment for the next 2-3 weeks
- Monitor open rates in Klaviyo Analytics — should improve
- Create a separate re-engagement flow for cold subscribers (no opens in 90+ days)
- Remove subscribers who don't click the re-engagement email
Klaviyo-Specific Note:
Klaviyo's segmentation tools make audience targeting easy.
Prevention Checklist
- Verify authentication monthly in Klaviyo Settings
- Monitor Klaviyo Analytics bounce and complaint rates weekly
- Clean suppressions list monthly
- Use Klaviyo segments to target engaged subscribers only
- Don't import or purchase lists without validation
- Set up Klaviyo email deliverability dashboard monitoring
- Use InboxEagle to monitor actual inbox placement (beyond Klaviyo's open rate)
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