> 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/security-center/user-account-security/ip-address-access-authorization-panel-api-smtp.md).

# IP Address Access Authorization (Panel, API, SMTP)

Restricting access to your EmailLabs account and its sending services to trusted IP addresses only is an effective method of protection against unauthorized login attempts or misuse of your resources. You can configure whitelists of allowed IP addresses for access to the administrative panel, as well as for connections via API or directly to SMTP servers.

* **Configuration for the Panel:** Restricting logins to the EmailLabs panel from selected IP addresses enhances the security of account management access. You can find these settings in the **Account -> Settings -> Security** section.
* **Configuration for API/SMTP:** For additional protection of mailings sent via API or SMTP, you can define from which IP addresses EmailLabs servers will accept connections and sending attempts for your SMTP accounts.

**Learn more:**

* [How to configure IP authorization for Panel access?](https://newpanel.docs.emaillabs.io/en/first-steps/security/ip-authorization)
* [How to configure IP authorization for SMTP accounts (API/SMTP)?](https://newpanel.docs.emaillabs.io/en/email/email-api/settings/smtp-accounts/ip-authorization)