A recent study reveals that errors in registration forms continue to impact email data quality, with more than 12% of captured email addresses presenting issues such as hard bounces and risky contacts. The findings highlight how data collection processes directly affect marketing performance and reinforce the importance of validation at the point of entry to ensure more reliable and effective email campaigns.
Rio de Janeiro, RJ, Brazil, 30th Mar 2026 – SafetyMails has released a new analysis highlighting how errors in registration forms impact email data quality and marketing performance. The analysis is based on the Email List Quality Report 2025, which examined nearly 1 billion email addresses across multiple industries.
According to the findings, 7.60% of captured emails result in hard bounces, while 4.57% are classified as risky, including temporary or potentially problematic addresses. Combined, these groups represent more than 12% of collected emails with some level of inconsistency.
This level of inconsistency can directly affect email marketing results, as hard bounce rates above 3% are commonly considered a signal of low-quality sending practices by email providers, increasing the risk of blocking and reduced deliverability.
The analysis indicates that many of these issues originate during data entry in registration forms. Common causes include typing errors, invalid domains, and non-existent email addresses.
A deeper breakdown shows that:
- 47.64% of issues are related to non-existent email addresses
- 39.45% involve invalid domains
- 12.91% are syntax errors during form input
These findings suggest that a significant portion of data quality issues could be reduced with validation mechanisms applied at the point of entry. The analysis also indicates that cleaning email lists after campaigns is not sufficient to address the issue, as invalid data continues to be generated during the capture stage. As a result, real-time validation is identified as an effective approach to verify email addresses at the moment they are entered, reducing the likelihood of storing inconsistent data.
Additional practices include syntactic validation within form fields, the use of double opt-in, and ongoing monitoring of email databases. SafetyMails also provides a free email validation tool that allows users to test email addresses in real time and observe how common issues are identified during validation.
More information: https://www.safetymails.com
About SafetyMails
SafetyMails is a company specialized in email validation and data quality solutions. Its platform provides bulk email verification and real-time validation tools designed to support marketing and communication processes. The company serves businesses across multiple industries that rely on accurate data to maintain reliable contact databases. SafetyMails focuses on improving email data quality and supporting campaign performance.
Media Contact
Organization: SafetyMails
Contact Person: Priscila Gonçalves
Website: https://www.safetymails.com/
Email: Send Email
Address:Av Nilo Peçanha, 50
City: Rio de Janeiro
State: RJ
Country:Brazil
Release id:43019
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