asDmarcExpressionOrNull
Casts this RuleCondition as a DmarcExpression and retrieves its aws.sdk.kotlin.services.mailmanager.model.RuleDmarcExpression value. Returns null if the RuleCondition is not a DmarcExpression.
Casts this RuleCondition as a DmarcExpression and retrieves its aws.sdk.kotlin.services.mailmanager.model.RuleDmarcExpression value. Returns null if the RuleCondition is not a DmarcExpression.