All Emailchef and TurboSMTP statistics on the collection of incorrect email contacts in 2025.
Collecting email addresses through registration forms is essential for any company looking to build a solid contact base. However, the quality of the collected email addresses can significantly impact the effectiveness of email marketing campaigns and the deliverability of communications.
This article presents the results of an analysis conducted on over 500,000 email addresses collected through forms managed by Emailchef and TurboSMTP. It highlights the main issues encountered, the most at-risk sectors, and the impact on marketing strategies.
The provided data offers a clear overview of the challenges and opportunities for companies looking to improve the quality of their collected contacts, thereby optimizing the effectiveness of their digital marketing strategy.
Key data on email contact collection through signup forms.
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Introduced in 1982, SMTP has become the global standard for email transmission, forming the backbone of email communication. At its core, SMTP is a set of rules and guidelines that email servers follow to ensure that emails are delivered from the sender to the recipient accurately and securely.
By using TurboSMTP, you can leverage these rules more effectively, ensuring that your emails are not only delivered but also achieve higher open rates by avoiding spam filters.
1. Rate of invalid email addresses collected.
- 22% of email addresses entered in online forms are incorrect or invalid.
- 15% contain typos, such as non-existent domains or invalid characters.
- 7% correspond to abandoned or inactive addresses.
However, another crucial factor is poorly optimized registration forms.
When a form does not provide immediate feedback on errors (for example, a message alerting users if the entered email address is incorrect), users may not notice mistakes before submitting the form. Using tools that detect email address errors can help prevent this issue.
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2. Data on the use of temporary email addresses.
- 12% of sign-ups come from temporary email services.
- In industries offering promotional deals, this percentage can rise to 18%.
- 60% of these emails are deactivated within 24 hours, making follow-ups impossible.
The use of temporary emails is particularly common in services that offer free trials, instant discounts, or access to exclusive content without requiring advanced authentication.
Users often resort to these addresses to avoid the commitment of providing a permanent email, protecting their privacy, or preventing unwanted future communications.
This behavior is especially prevalent in industries where the primary goal is to quickly attract new users or customers without ensuring long-term engagement.However, the widespread use of temporary emails can reduce the quality of contact lists and weaken marketing campaign effectiveness, as these addresses are often deactivated quickly, making long-term communication or follow-ups impossible.
3. High-risk industries.
Some industries are more exposed to the issue of invalid emails:
| Industry | % Invalid Emails | % Temporary emails |
|---|---|---|
| E-commerce | 28% | 15% |
| SaaS & Software | 25% | 18% |
| Financial Sector | 12% | 8% |
| Media & Newsletters | 20% | 10% |
Spikes in invalid emails tend to occur during major promotional campaigns, seasonal sales, and new product launches. During these periods, businesses attract a large number of new sign-ups, often through special offers and discounts. However, not all users who register are genuinely interested in receiving long-term communications.
Many take advantage of temporary or incorrect emails to access promotions without commitment. Additionally, the urgency to claim offers can lead to typos in email addresses. As a result, companies end up with a higher number of invalid addresses, negatively impacting the quality of their contact lists and the deliverability of future communications.
The impact of email verification tools
during collection.
- Real-time email verification can reduce the number of invalid addresses by up to 50%.
- Implementing double opt-in forms decreases the presence of incorrect or temporary emails in lists by 75%.
- A cleaner email list leads to an average increase of 20% in open rates and 10% in conversion rates.
Why collecting valid and high-quality email addresses is essential for your mailing list.
The presence of incorrect or temporary emails in contact lists is not just a deliverability issue, it can significantly impact various aspects of online communication, including:
- Poor sender reputation: high bounce rates can harm your domain’s reputation and increase the risk of being blacklisted.
- Unreliable marketing data: a database filled with invalid emails leads to misleading campaign performance metrics.
- Wasted resources: sending emails to incorrect addresses results in unnecessary costs related to infrastructure and campaign management.
Companies that implement email verification strategies and optimize their contact collection processes can significantly enhance the effectiveness of their communications and improve the quality of user interactions.
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