# Sender Authorization

Sender authentication is a functionality that allows you to authenticate domains, which enables you to conduct sendings through EmailLabs.

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Authorization ensures the security of your account against unauthorized sendings by third parties. Additionally, emails are signed with a **DKIM key**. 
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**Detailed instructions can be found here:**

<table data-view="cards"><thead><tr><th></th><th></th><th></th></tr></thead><tbody><tr><td>👩‍💻 <strong>Sender Authorization</strong></td><td>Learn the correct procedure for authorizing a domain or email address.</td><td><a href="/pages/iQxK2KLYI5MzOAs8E5Oe">MORE >></a></td></tr></tbody></table>


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