public RuleCondition withDmarcExpression(RuleDmarcExpression dmarcExpression) {
        setDmarcExpression(dmarcExpression);
        return this;
    }
<p>
The condition applies to a DMARC policy expression passed in this field.
</p>

@param dmarcExpression
       The condition applies to a DMARC policy expression passed in this field.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-mailmanager/src/main/java/com/amazonaws/services/mailmanager/model/RuleCondition.java