> For the complete documentation index, see [llms.txt](https://docs.emaillabs.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.emaillabs.io/en/analytics-panel/authentications/s-mime.md).
# S/MIME
S/MIME (Secure/Multipurpose Internet Mail Extensions) is a cryptographic method to securely encode and sign emails. It allows users to protect their content from unauthorized access and confirm the sender's authenticity. To use S/MIME, it is necessary to purchase a digital certificate and share it with EmailLabs to correctly configure it in our system.
A certificate assigned to your e-mail address can be found in the **SMTP accounts tab > Settings > S/MIME.**
{% hint style="info" %}
For more information about the pricing of implementing the S/MIME certificate, contact our consultants at
{% endhint %}
You can find out more about S/MIME on our blog:
🔐 S/MIME
Have you noticed that a verified email address indication is visible next to some senders?
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