# DeliveryOptions
<a name="API_DeliveryOptions"></a>

Specifies whether messages that use the configuration set are required to use Transport Layer Security (TLS).

## Contents
<a name="API_DeliveryOptions_Contents"></a>

 ** TlsPolicy **   
Specifies whether messages that use the configuration set are required to use Transport Layer Security (TLS). If the value is `Require`, messages are only delivered if a TLS connection can be established. If the value is `Optional`, messages can be delivered in plain text if a TLS connection can't be established.  
Type: String  
Valid Values: `Require | Optional`   
Required: No

## See Also
<a name="API_DeliveryOptions_SeeAlso"></a>

For more information about using this API in one of the language-specific AWS SDKs, see the following:
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/email-2010-12-01/DeliveryOptions) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/email-2010-12-01/DeliveryOptions) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/email-2010-12-01/DeliveryOptions)