Examples - SMTP Rules

Here, the delivery service attempts to resend the undelivered e-mail three times at hourly intervals. If it is unsuccessful, it sends an e-mail notification using the default fail mail behavior.

<defaultSmtpBehaviour>
	<smtpBehaviour name="default">
		<keepMail>false</keepMail> 
		<resends number="3" delaySeconds="3600" /> 
		<failMail /> 
	</smtpBehaviour>
 </defaultSmtpBehaviour>

The second example shows how to set up a rule for a transport error. Here, the delivery service resends the e-mail indefinitely, at 30 second intervals, until it is successful.

<smtpRule>
	<smtpError>
		<transport>true</transport> 
	</smtpError>
	<smtpBehaviour name="transport">
		<keepMail>false</keepMail> 
		<resends number="-1" delaySeconds="30" /> 
	</smtpBehaviour>
</smtpRule>

The third example shows how to set up a rule for a recipient error. Here, the e-mail notification is sent to the agent owner using the e-mail address stored in their user ID. The original e-mail recipients are removed from the recipient list.

<smtpRule>
	<smtpError>
		<invalidRecipients>true</invalidRecipients> 
	</smtpError>
	<smtpBehaviour name="invalidRecips">
		<keepMail>false</keepMail> 
		<failMail>
			<recipients sendToCurrentRecipients="false">
				<owner>true</owner> 
			</recipients>
		</failMail>
	</smtpBehaviour>
 </smtpRule>

The fourth example shows how to set up a rule for a specified error code. Here, the undelivered e-mail is sent to the backup queue whenever error 550 occurs. It remains there until you process it manually. A customized e-mail subject is set up for the fail mail notification.

<smtpRule>
	<smtpError>
		<errorCode>550</errorCode>
	</smtpError>
	<smtpBehaviour name="specialErrorCode-550">
		<keepMail>true</keepMail>
		<failMail>
			<subject>Error code 550 keep mail</subject>
		</failMail>
	</smtpBehaviour>
</smtpRule>