# RuleStringToEvaluateProperty

The string to evaluate in a string condition expression.

> This data type is a UNION, so only one of the following members can be specified when used or returned.

- Source: Generated code
- Type last changed: v2.251.0 · 24 Apr 2026

## Example

```ts
// The code below shows an example of how to instantiate this type.
// The values are placeholders you should change.
import { aws_ses as ses } from 'aws-cdk-lib';
const ruleStringToEvaluateProperty: ses.CfnMailManagerRuleSet.RuleStringToEvaluateProperty = {
  analysis: {
    analyzer: 'analyzer',
    resultField: 'resultField',
  },
  attribute: 'attribute',
  clientCertificateAttribute: 'clientCertificateAttribute',
  mimeHeaderAttribute: 'mimeHeaderAttribute',
};
```

## Properties

- `analysis`: [IResolvable](/cdk/api/v2/docs/aws-cdk-lib.IResolvable.html) | [CfnMailManagerRuleSet.AnalysisProperty](/cdk/api/v2/docs/aws-cdk-lib.aws_ses.CfnMailManagerRuleSet.AnalysisProperty.html) — The Add On ARN and its returned value to evaluate in a string condition expression.

- `attribute`: string — The email attribute to evaluate in a string condition expression.

- `clientCertificateAttribute`: string

- `mimeHeaderAttribute`: string — The email MIME X-Header attribute to evaluate in a string condition expression.