How a SaaS Company Reduced Churn with Email Warmup

The Challenge: High Churn Due to Poor Email Deliverability

A fast-growing SaaS company offering project management tools struggled with customer churn. Despite a well-designed product and onboarding sequence, many trial users never converted to paid plans.

After analyzing their onboarding emails, they found:

Low open rates (below 15%)
Emails landing in spam folders, especially in Gmail and Outlook
Poor engagement with onboarding steps

The issue? Poor email warmup and low sender reputation, causing emails to be ignored or undelivered.

Solution: They turned to InboxDoctor’s Email Warmup and Deliverability Testing to fix their onboarding email performance.

The Strategy: Using InboxDoctor to Improve Email Performance

Step 1: Email Warmup for Better Sender Reputation

The SaaS company used InboxDoctor’s Email Warmup tool to gradually increase sending volume.

Gradual Increase: Started with low-volume sends and scaled up to build a positive reputation.
Engagement Signals: The warmup process improved email interactions (opens, replies, and clicks).
Inbox Placement Tracking: They identified that Gmail and Outlook were filtering emails, allowing for targeted fixes.

Results after 30 days:

Inbox placement improved by 40%
Spam complaint rate dropped to 0.02%

Step 2: A/B Testing to Optimize Onboarding Emails

Next, they used InboxDoctor’s Inbox Placement Tests to experiment with different subject lines, send times, and content styles.

Subject Line Optimization: They tested different variations and found that personalized subject lines improved open rates by 27%.
Content Adjustments: Shorter, action-driven emails led to a 32% increase in click-through rates.
Deliverability Fixes: InboxDoctor’s Spam Test flagged HTML issues that could trigger spam filters.

Results after 60 days:
Open rates increased from 15% to 42%
Click-through rates improved by 50%

Step 3: Engagement Monitoring to Reduce Churn

The final step was tracking recipient engagement and adjusting email frequency.

Low-engagement users: They sent reminders with alternative onboarding options (webinars, FAQs).
High-engagement users: These users received personalized follow-ups, increasing trial-to-paid conversions.
Churn Reduction: By ensuring every onboarding email landed in the inbox, users completed more steps and converted at a higher rate.

Results after 90 days:
Churn rate dropped by 18%
Trial-to-paid conversions increased by 22%

The Outcome: A Scalable, High-Performing Email Strategy

Thanks to InboxDoctor’s Email Warmup, Testing, and Engagement Monitoring, the SaaS company transformed their email deliverability and reduced churn significantly.

Key Wins:

Inbox placement improved by 40%
Spam complaints dropped to 0.02%
Open rates increased from 15% to 42%
Churn rate decreased by 18%

Takeaway: Email warmup and testing are essential for SaaS onboarding success. InboxDoctor ensures your emails land where they belong—in the inbox, not spam.

Want to improve your SaaS email performance? Try InboxDoctor today!