Key welcome and campaign emails were landing in spam, leading to:

This issue was rooted in weak Email Marketing foundations, where low engagement signals and poor sender reputation pushed key flows into spam.

• Welcome flow open rates below 50%
• GlockApps test confirming low inbox placement
• Revenue from Klaviyo close to zero

1. Paused Low-Engagement Emails
Stopped all flow emails with <30% open rate to reduce negative engagement signals.

2. Enabled Double Opt-In
Ensured only real subscribers enter the list and removed invalid/low-quality sign-ups.

3. Segmented High-Engagers
Created a segment of subscribers who opened at least once in the last 30 days (or 3+ opens for large lists).

4. Sent 1 Campaign per Week for 4 Weeks

• Light, educational content
• Minimal imagery to avoid spam filters
• Target: maintain 50%+ open rate

5. Gradually Re-Enabled Flows
Once open rates stabilized at 40-50%+, re-activated flows 2-3 emails at a time, monitoring engagement before each step.

All email deliverability issues resolved - campaigns now land in inbox. All email deliverability issues resolved – campaigns now land in inbox, supported by accurate attribution after Fix Shopify Tracking improvements.

With proper Google Analytics 4 setup & optimization, revenue from Klaviyo increased to 40%+ of total revenue. Revenue from Klaviyo increased to 40%+ of total revenueKey email performance metrics:

• Open rate: 60–89%+
• CTR: well above previous benchmark

Sergii Iushchenko

COO, Freezvon

It's their organization and professionalism. They know what to do.

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