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Klaviyo Emails Going to Spam

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Workaround available Web, Shopify Updated November 13, 2026Based on 5 user reportsHow we research

Quick answer

Klaviyo emails land in spam mostly because of weak authentication (shared sending domain, incomplete DKIM/SPF/DMARC) or too many unengaged profiles. Set up a branded sending domain and suppress dead contacts first.

Most likely fix: Set up a branded sending domain

How to fix it

Try these in order — the most common fix is first.

  1. 1. Set up a branded sending domain

    1. Go to Settings > Domains and add your domain
    2. Accept the suggested sending subdomain
    3. Add the generated CNAME/TXT records at your DNS host
    4. Add a DMARC TXT record (p=none to start) only if you don't already have one
    5. Confirm the domain shows as verified, then send a test and check the headers
    Did this fix it?

  2. 2. Clean the list

    1. Suppress profiles that haven't engaged in a long time
    2. Only email people who consented
    3. Fix or remove bounced addresses
    4. Reintroduce unengaged contacts gradually instead of in one blast
    Did this fix it?

  3. 3. Check it isn't just the Promotions tab

    1. Klaviyo describes Promotions as a normal inbox tab, not spam
    2. More personal, less promotional content tends to land in Primary
    3. Ask recipients to move the message to Primary once; Gmail learns from that
    Did this fix it?

  4. 4. Test placement

    1. Klaviyo doesn't show tab placement
    2. Send to seed accounts at Gmail, Outlook and Yahoo and note where mail lands
    Did this fix it?

Symptoms

Campaigns or flows show as delivered but recipients find them in spam, or open rates collapse after a spike in sends.

Why it happens

  • Still sending from Klaviyo's shared domain (DKIM signed as klaviyomail.com)
  • Branded sending domain DNS records incomplete or DMARC missing
  • Large number of unengaged or unconsented profiles
  • Sudden jump in volume after a quiet period
  • Confusing the Promotions tab with spam

This guide also covers

  • klaviyo emails going to spam
  • klaviyo promotions tab
  • klaviyo deliverability
  • klaviyo dkim

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