* {@link AlertSettings}.
*
* @param configuration
*/
private void setUpSmtpAlerter(BaseCloudAdapterConfig configuration) {
AlertSettings alertsConfig = configuration.getAlerts();
if (alertsConfig != null) {
LOG.debug("configuring SMTP alerter.");
SendSettings sendSettings = new SendSettings(
alertsConfig.getRecipients(), alertsConfig.getSender(),
alertsConfig.getSubject(), alertsConfig.getSeverityFilter());
SmtpServerSettings mailServerSettings = alertsConfig
.getMailServer().toSmtpServerSettings();
this.smtpAlerter.set(new EmailAlerter(mailServerSettings,
sendSettings, standardAlertTags()));
this.eventBus.register(this.smtpAlerter.get());
}