Studies — February 3, 2026 at 1:33 pm

White Image Study on 1.5 billion emails: Personalized messages achieve open rates over 75% with minimal spam complaints

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White Image, Romania’s largest email marketing agency, announces the release of its most comprehensive digital benchmark report for 2025. The study aggregates data from over 250,000 campaigns and a record volume of 1.5 billion emails, providing an unprecedented overview of Romanian consumer behavior across 18 business sectors.

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In a year marked by fiscal changes and fierce competition for user attention, data from the White Image platform highlights a clear conclusion: automated communications (triggers) and granular segmentation have become critical differentiators between success and irrelevance.

Key Takeaways for 2025: Precision in Digital Marketing

According to the report, performance is no longer directly proportional to volume, but to the usefulness of the message.

Gold Standard: Automated communication flows recorded a record Open Rate of 75.37% and Click-Through Rate (CTRO) above 20%.
● Zero Resistance: In some industries, these messages generated almost no spam complaints throughout the year, demonstrating perfect alignment between consumer expectations and message timing.
Information Loyalty: Sectors such as IT and Energy reported unusually high reopen rates (Render Ratio between 6 and 14 views per email), confirming email’s transformation from a simple promotion channel into a key reference and management tool.

Seasonality and Paradoxes: Q2 vs. Q4

The study reveals an interesting consumption paradox:

● While Q4 (Black Friday and holiday season) remains the peak in volume, maximum conversion efficiency was achieved in Q2 (April–June). In sectors like Retail and Telecom, Q2 click rates surpassed year-end performance.
Warning for 2026: In eCommerce and Retail, message congestion during Q4 caused a threefold increase in unsubscribe rates and spam complaints, reaching critical thresholds above 1.2%.

“Analyzing 1.5 billion emails from 2025 confirms that the era of mass, unsegmented email sending is over. The tremendous success of automated communications, generating zero spam in many cases and over 75% open rates in many instances, shows that the future belongs to real-time, data-driven marketing. In 2026, brands will face the challenge of moving from ‘sending a newsletter’ to managing thousands of personalized micro-campaigns triggered by each individual customer’s actions. This report is not just a collection of numbers, but a compass for any business that wants to thrive in 2026. The 1.5 billion interactions analyzed speak clearly: the future is micro-segmentation and respecting the user’s inbox,” said Andrei Georgescu, Partner at White Image.

Industry Highlights (Key Insights):

Tourism: Peak efficiency in Q1, with Early Booking offers generating 40% more interest than Last Minute deals.
● Banking & Services: Successfully used Omni-channel strategies (Email + SMS) to maintain transactional continuity.
● Conversion Efficiency: Consulting sector achieved a historic CTRO record of 66% in Q3.
● Audience Loyalty: In IT, an email was reopened an average of 14.3 times, serving as a permanent resource.
Utility Resilience: Energy sector reported only 0.01% spam and consistent reading frequency, showing email’s role as an essential service management tool and audience loyalty.
● Engagement Peak: Services sector closed the year with a 22.97% click rate, demonstrating successful retention strategies during peak periods.

Q4 Paradox: Volume vs. Saturation

Although Q4 2025 saw the highest sending volume, pressure on users’ inboxes posed major risks for unsegmented brands.

● In eCommerce and Retail, spam rates reached nearly 1% in December, the highest in years.
● Automated flows (behavior-based triggers) maintained a 63.70% open rate even during busy periods like Black Friday, with minimal spam complaints.

When Do Romanians React? Strategic Calendar for 2026

The White Image analysis offers companies clear guidance for planning budgets in the new year:

Q1 (Jan–Mar): “Golden hour” for Tourism (CTRO 13.57% for Early Booking) and Energy.
● Q2 (Apr–Jun): Commercial driver for Telecom (7.12% click) and Retail.
● Q3 (Jul–Sep): Ideal for educational and technical content, with a Render Ratio of 7.80 in Energy & Utilities.
●    Q4 (Oct–Dec): Peak period for Training & Events (CTRO 4.34%) and Last Call conversions.

“When a message reaches the right person at the moment they need it, marketing stops being perceived as advertising and becomes a utility. Sending 15 million emails with zero spam complaints while maintaining over 60% engagement is the ultimate performance of relevance,” say White Image experts.

Q2 Paradox: Opportunity Window for 2026

Although Q4 dominates in sheer volume, Q2 (April–June) proved to be the most efficient conversion period of the year. Telecom and Services sectors achieved click rates 20% higher than during the winter holidays, suggesting greater audience responsiveness outside traditional sale periods.

A major surprise: the NGO sector showed donor loyalty exceeding many commercial verticals, proving that socially impactful messages can cut through digital noise even during high advertising periods.
Aggregated data shows that communication efficiency is dictated not by database size, but by relevance, which strongly influences message re-read frequency. Certain utility sectors turned a single email into a resource repeatedly accessed over several weeks.

The study highlights a major discrepancy between sending volume and retention rate, indicating that brands ignoring subscriber saturation signals during peak periods suffered faster sender reputation degradation than in previous years.

The full study, including detailed benchmarks for all 18 industries, SMS marketing segment analysis, and strategic forecasts for 2026, is available free for industry professionals.

Download the full report here: https://www.whiteimage.net/studiu_email_marketing/