<\/span><\/h2>\nThe report\u2014conducted by email performance analysts and data quality researchers\u2014examined engagement patterns and deliverability trends<\/strong> across thousands of email lists from organisations in sectors such as retail, finance, technology, nonprofit, and publishing.<\/p>\nSpecifically, it looked at:<\/p>\n
\n- Open rates<\/strong><\/li>\n
- Click\u2011through rates<\/strong><\/li>\n
- Bounce and inactivity rates<\/strong><\/li>\n
- Changes in subscriber behaviour over time<\/li>\n<\/ul>\n
The goal was to measure how quickly email lists lose active engagement without regular maintenance.<\/p>\n
\n<\/span>2. Key Finding: Roughly 25% Inactivity Annually<\/strong><\/span><\/h2>\nThe central finding is that about one in four email contacts become inactive each year<\/strong> unless brands actively engage or clean their lists.
\nHere\u2019s what that means in practical terms:<\/p>\n\n- Of 1,000 subscribers at the start of the year, around 250<\/strong> are unlikely to open or engage with messages by the end of the year.<\/li>\n
- In many cases, those addresses may still be deliverable but are effectively \u201cdormant\u201d<\/strong> in terms of engagement.<\/li>\n<\/ul>\n
This trend was consistent across different industries and list sizes, though the exact percentage varied slightly.<\/p>\n
\n<\/span>3. What Counts as \u201cInactive\u201d?<\/strong><\/span><\/h2>\nAccording to the report, an address is considered inactive<\/strong> if:<\/p>\n\n- The recipient has not opened or clicked<\/strong> any emails in the past 12 months<\/strong><\/li>\n
- Messages to the address no longer generate meaningful engagement<\/strong><\/li>\n
- Contact may have become dormant due to lack of interest, outdated address, or changed email habits<\/li>\n<\/ul>\n
Addresses that repeatedly bounce back (undeliverable) were tracked separately as invalid contacts<\/strong>.<\/p>\n
\n<\/span>4. Causes of Email List Inactivity<\/strong><\/span><\/h2>\nSeveral factors contribute to rising inactivity:<\/p>\n
<\/span>A. Address Changes<\/strong><\/span><\/h3>\nPeople switch email providers or abandon old accounts\u2014especially with free services.<\/p>\n
<\/span>B. Loss of Interest<\/strong><\/span><\/h3>\nSubscribers may no longer find content relevant, leading to lower open rates<\/strong> over time.<\/p>\n<\/span>C. Increased Digital Clutter<\/strong><\/span><\/h3>\nHigh email volumes from multiple brands can overwhelm users, prompting them to ignore messages.<\/p>\n
<\/span>D. Spam Filters<\/strong><\/span><\/h3>\nIf content isn\u2019t highly engaging, messages may be diverted to spam folders<\/strong>, reducing opens.<\/p>\n
\n<\/span>5. Impact on Campaign Performance<\/strong><\/span><\/h2>\nInactive contacts degrade overall email performance in several ways:<\/p>\n
<\/span>Lower Engagement Rates<\/strong><\/span><\/h3>\n\n- Open rates drop as inactive subscribers fail to interact.<\/li>\n
- Click\u2011through rates also decline.<\/li>\n<\/ul>\n
<\/span>Harmed Deliverability<\/strong><\/span><\/h3>\nEmail platforms may interpret poor engagement as a signal of low sender reputation<\/strong>, leading to:<\/p>\n\n- Mail delivered to spam or promotions folders<\/li>\n
- Blocked or throttled sending rates<\/li>\n<\/ul>\n
<\/span>Wasted Costs<\/strong><\/span><\/h3>\nSending to large lists with inactive segments increases server and platform costs<\/strong> without meaningful return.<\/p>\n
\n<\/span>6. Industry Benchmarks from the Report<\/strong><\/span><\/h2>\nThe report highlights engagement trends:<\/p>\n
\n- First 6 months:<\/strong> most fresh subscribers show moderate engagement<\/li>\n
- 6\u201312 months:<\/strong> engagement begins to decline more noticeably<\/li>\n
- 12+ months:<\/strong> nearly 25% are inactive<\/strong><\/li>\n<\/ul>\n
These patterns were stronger among lists that:<\/p>\n
\n- Had no re\u2011engagement or cleaning strategy<\/li>\n
- Relied on bulk email blasts rather than segmented campaigns<\/li>\n<\/ul>\n
\n<\/span>7. Recommended Best Practices<\/strong><\/span><\/h2>\nTo keep email lists healthy and effective, the report recommends:<\/p>\n
<\/span>A. Regular Cleaning and Validation<\/strong><\/span><\/h3>\nRemove or re\u2011engage inactive addresses every 3\u20136 months<\/strong> using validation tools.<\/p>\n<\/span>B. Segmentation by Engagement<\/strong><\/span><\/h3>\nGroup contacts based on recent activity<\/strong> and tailor content accordingly.<\/p>\n<\/span>C. Re\u2011Engagement Campaigns<\/strong><\/span><\/h3>\nSend targeted campaigns to unengaged contacts to reconfirm interest<\/em> before removing them.<\/p>\n<\/span>D. Clear Opt\u2011In and Double Opt\u2011In<\/strong><\/span><\/h3>\nRequire subscribers to confirm their sign\u2011up to ensure higher initial engagement and data quality.<\/p>\n
\n<\/span>8. Quotes from Report Authors<\/strong>