Email Deliverability: 7 Powerful Reasons to Check Your Email Addresses Before Sending a Campaign
The success of an email campaign depends on an often underestimated factor: deliverability. 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.
Why is deliverability crucial?
Your email may be perfectly written, well-targeted and well-designed... but if it doesn't reach the inbox, it's useless. Deliverability determines the ability of your e-mails to really reach your target audience without being blocked or spammed.
It depends on several criteria: the quality of your database, the content, the frequency of sending, and above all the validity of the email addresses.
Reduce shipping errors immediately
A bounce rate greater than 5 % is a warning signal for internet service providers (Gmail, Outlook, etc.). This can lead to a deterioration in your reputation as a sender, poor deliverability and even blacklisting. Checking your addresses before each mailing helps maintain an ideal bounce rate, below 2 %.
According to Validityup to 23 % of B2B email addresses are invalid or inactive.
Protect your sender reputation
Platforms like Gmail or Outlook value senders who send to valid addresses. By limiting bounces, you demonstrate good basic hygiene and protect your domain's reputation.
Improve your open rate
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.
Save time on error handling
Without an email deliverability check, you then have to manage bounces, manually clean lists... all time-consuming tasks. A solution like Snapshoot allows you to fully automate the process from the moment addresses are imported or before mailing.
To find out more about email marketing best practices, see our other articles on Efidem's blog.
Analyze the reasons for rebounds
Verification also allows you to categorize bounce types soft (temporary) or hard (non-existent address). This analysis helps you adjust your marketing actions, detect anomalies by domain, and improve your future campaigns.
Boost the performance of your future campaigns
A clean base today means a clean a better campaign tomorrow. Your emails will be more likely to be read, shared, and generate conversions. It's a virtuous circle.
According to HubspotA bounce rate of over 5 % can be enough to send all your emails to spam.
Get an all-in-one solution with Snapshoot
With Snapshoot, you don't need a third-party tool 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.
To find out more about optimizing your campaigns, read our article : How to improve your email open rate?
Comparative summary: Sending with or without verification
| Email campaign | Without verification | With verification |
|---|---|---|
| Bounce rate | 8-15 % | < 2 % |
| Blacklisting risk | High | Low |
| Sender reputation | Degraded | Maintained |
| Open rate | 10-15 % | 20-30 % |
| Estimated ROI | Low | Up to 2× higher |
| Time spent (after-sales service, cleaning) | High | Minime |
Frequently asked questions - Email verification
Why does a "bounce" email penalize my campaign?
Because ISPs see it as bad hygiene → spam or blacklisting.
What's the difference between a soft bounce and a hard bounce?
Soft bounce box full or temporary error
Hard bounce : address does not exist → must be deleted
My base is new, should I still check it?
Yes, typos, expired or mistyped emails are common, even on a new list.
Conclusion
Checking email addresses is much more than a technical detail: it's a matter of an essential performance lever for your email deliverability. With a tool like Snapshoot, you gain in efficiency, deliverability and profitability. In a saturated digital ecosystem, every point gained counts.
Want to know more about optimizing your emails? Read other articles on Efidem's blog and above all respect the rules RGPD.
