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  /statelake/administering-statelake/designer/global-setup/general-setup/email-settings-tab-general-setup/ssl-settings-email-settings.md
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# SSL Settings (Email Settings)

An acronym for **Secure Sockets Layer, SSL** is an encryption-based internet security protocol, that uses digital certificates to establish an encrypted link between a server and a client to authenticate, encrypt and decrypt data sent over the internet.

**SSL** is standard technology that allows sensitive information like credit card details to be transmitted securely and privately over the internet - either between a website and a browser, or between two servers. It prevents hackers from seeing or stealing any information transferred, including personal or financial data.

The digital certificate contains a public key that authenticates the identity of one party, and allows for encrypted data transfer through asymmetric, or public-key cryptography. The matching private key is kept secret on the server of the other party.

The **SSL Settings** editor is used for specifying **SSL** information for modules that require connection through protocols that support SSL connections, such as **Transports**. It allows you to enable SSL connection, as well as providing client side certificates for services that support client side certificates.

Once set at **Global** level, this **SSL Setting** will apply across the entire configuration.

**TLS** is an acronym for **Transport Layer Security**, which is the security protocol that encrypts emails for privacy, preventing any unauthorised access to the email while in transit across the internet between connections.

Selecting **SSL Settings** opens a fresh expandable **SSL Settings Editor** window.

## Fields

| Field Name | Description |
|---|---|
| Protocol | Select the correct **Protocol** from the drop-down list of available options. |
| Method | Select the **SSL Method** to use. Select **None** for no SSL. Select **Auto** to enable SSL. You should nearly always use **Auto** rather than specify one of the SSL versions directly. **Auto** will select the best available **SSL** version to use. |
| Root Certificate | Specify the **Root Certificate** file that your client certificate is based on. |
| Certificate File | Select the client **Certificate File** containing your *public* key. |
| Key File | Select the client **Certificate File** containing your *private* **Key**. |
| Key Password | Enter the password used to encrypt your **Key File** so the software can access the **Key File Certificate**. |
| Certificate Depth | Select the **Depth** of the certificate chain to review when checking server certificate validity. The default is 2. |
| Verify peer | Select to enable the verification of the **Peer** (server) certificate.If any details of the certificate are not valid, the connection will fail. |
| Fail if no peer certificate | Select to fail if the **Peer** (server) does not have a certificate. |
| Verify once | Select to verify the certificate once per connection, or each time the connection is used. |

## Buttons

| Button Name | Description |
|---|---|
| Cancel | Click to **Cancel** any edit of the SSL settings used when making the connection to the SMTP server. |
| OK | Click to **Save**. |