public void setMessageDsn(MessageDsn messageDsn) {
        this.messageDsn = messageDsn;
    }
<p>
Message-related DSN fields. If not specified, Amazon SES chooses the values.
</p>

@param messageDsn
       Message-related DSN fields. If not specified, Amazon SES chooses the values.
aws-java-sdk-ses/src/main/java/com/amazonaws/services/simpleemail/model/SendBounceRequest.java