# ExtensionField
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Additional X-headers to include in the Delivery Status Notification (DSN) when an email that Amazon SES receives on your behalf bounces.

For information about receiving email through Amazon SES, see the [Amazon SES Developer Guide](https://docs.aws.amazon.com/ses/latest/dg/receiving-email.html).

## Contents
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 ** Name **   
The name of the header to add. Must be between 1 and 50 characters, inclusive, and consist of alphanumeric (a-z, A-Z, 0-9) characters and dashes only.  
Type: String  
Required: Yes

 ** Value **   
The value of the header to add. Must contain 2048 characters or fewer, and must not contain newline characters ("\$1r" or "\$1n").  
Type: String  
Required: Yes

## See Also
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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/ExtensionField) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/email-2010-12-01/ExtensionField) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/email-2010-12-01/ExtensionField)