{"id":13299,"date":"2025-05-19T14:39:36","date_gmt":"2025-05-19T12:39:36","guid":{"rendered":"https:\/\/www.efidem.com\/?p=13299"},"modified":"2026-03-05T15:39:56","modified_gmt":"2026-03-05T14:39:56","slug":"delivery-email-clean-base","status":"publish","type":"post","link":"https:\/\/www.efidem.com\/en\/blog\/2025\/05\/19\/delivrabilite-email-nettoyer-base\/","title":{"rendered":"Email Deliverability: 7 Key Reasons to Check Your Email Addresses Before Sending a Campaign"},"content":{"rendered":"
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Email Deliverability: 7 Powerful Reasons to Check Your Email Addresses Before Sending a Campaign<\/h2>

The success of an email campaign depends on an often underestimated factor: email deliverability<\/strong>. Too many companies still waste time, money and reputation by sending to invalid addresses. Yet a simple preliminary check can transform your results. The functionality is available at Snapshoot<\/a>.<\/p>

Why is deliverability crucial?<\/h2>

Your email may be perfectly written, well-targeted and well-designed... but if it doesn't reach the inbox, it's useless. Email deliverability determines the ability of your emails to really reach your target audience<\/strong> without being blocked or spammed.<\/p>

Your email deliverability depends on several criteria: the quality of your database, the content, the frequency of sending, and above all the validity of the email addresses.<\/p>

Reduce shipping errors immediately<\/h3>

A bounce rate greater than 5 % is a warning signal for internet service providers<\/strong> (Gmail, Outlook, etc.) and negative for your email deliverability. This can lead to a deterioration in your sender reputation, poor email deliverability and even blacklisting. Checking your addresses before each mailing helps you maintain an ideal bounce rate, below 2 %.<\/p>

According to Validity<\/a>up to 23 % of B2B email addresses are invalid or inactive.<\/p><\/blockquote>

Protect your sender reputation<\/h3>

Platforms such as\u00a0Gmail<\/a>\u00a0or\u00a0Outlook<\/a> value senders who send to valid addresses. By limiting bounces, you demonstrate good basic hygiene and protect your domain's reputation. In the B2C world, Gmail often represents more than 40% of recipients, so it's crucial to respect its prerequisites.\u00a0<\/p>

Improve your open rate<\/h3>

Fewer bounces means more emails actually delivered. This simple adjustment can double your open rates. That translates directly into more clicks, more engagement, and a better return on investment.<\/p>

Save time on error handling<\/h3>

Without an email deliverability check, you then have to manage bounces, manually clean up lists... all time-consuming tasks. A solution like Snapshoot<\/strong> allows you to fully automate the process from the moment addresses are imported or before mailing.<\/p>

To find out more about email marketing best practices, see our other articles on Efidem's blog<\/a>.<\/p>

Analyze the reasons for rebounds<\/h3>

Verification also allows you to categorize bounce types<\/strong> soft (temporary) or hard (non-existent address). This analysis helps you adjust your marketing actions, detect anomalies by domain, and improve the email deliverability of your future campaigns.<\/p>

Boost the performance of your future campaigns<\/h3>

A clean base today means a clean a better campaign tomorrow<\/strong>. Your emails will be more likely to be read, shared, and generate conversions. It's a virtuous circle.<\/p>

According to Hubspot<\/a>A bounce rate of over 5 % can be enough to send all your emails to spam.<\/p><\/blockquote>

Get an all-in-one solution with Snapshoot<\/h3>

With Snapshoot, there's no need for deliverability testing tools or technical expertise to improve and verify your email deliverability. Verification is automatic, integrated into your sending environment, for clean, compliant and optimized campaigns right from the start.<\/p>

To find out more about optimizing your campaigns and email deliverability, read our article : How to improve your email open rate?<\/a><\/p>

Comparative summary: Sending with or without verification<\/h2>
Email campaign<\/th>Without verification<\/th>With verification<\/th><\/tr><\/thead>
Bounce rate<\/td>8-15 %<\/td>< 2 %<\/td><\/tr>
Blacklisting risk<\/td>High<\/td>Low<\/td><\/tr>
Sender reputation<\/td>Degraded<\/td>Maintained<\/td><\/tr>
Open rate<\/td>10-15 %<\/td>20-30 %<\/td><\/tr>
Estimated ROI<\/td>Low<\/td>Up to 2\u00d7 higher<\/td><\/tr>
Time spent (after-sales service, cleaning)<\/td>High<\/td>Minime<\/td><\/tr><\/tbody><\/table>
\u00a0<\/div><\/div><\/div><\/div>

Frequently asked questions - Email verification<\/h2>

Why does a \u00abbounce\u00bb email penalize my campaign and therefore my email deliverability?<\/strong>
Because ISPs see it as bad hygiene \u2192 spam or blacklisting.<\/p>

What's the difference between a soft bounce and a hard bounce?<\/strong><\/p>