You can use a Domino Console action to trigger all kinds of console commands.
The aim of this configuration is, to restart the router task whenever a certain amount of dead e-mails has been reached (eg. after 3 measurement runs). If the situation does not improve (after restarting the router) one can trigger in addition a normal e-mail notification to the admin (e.g. triggerd after 5 measurements)
-Create a Domino Statistics Sensor and add a Domino Console command action.
-We decide to use the following condition: If there are more than 100 dead e-mails, then this condition becomes true
Copy/Paste
${result.statistics['Mail.Dead'] > 100}
-click on Advanced Options
Select the following check boxes and adjust the values in the two fields
In this case, the action will wait 5 measurement runs until it triggers a single a console command
-Click next
-Enter the following string
Copy/Paste:
Restart Task Router
-Save/close
-Create a SMTP notification
Define the same Condition but choose the following Advanced options (because we want to trigger only the SMTP e-mail if the previous console command did not solve the issue)
-Click next
-Enter the notification Text
Copy / Paste
Mail Dead on ${gl:commonName(config.nodeDefinition.name)}
Current Dead mail on Server ${gl:commonName(config.nodeDefinition.name)} is:
{result.statistics['Mail.Dead']}
Please check immediately!
-Save/Close
You should have now the following actions
You can imagine that a'lot of other nice use-cases exists 
example:
-trigger a load compact on a database whenever it is above a certain threshold....
OR
-first notify the administrator and if the issue still occurs then send a notification to his manager