Although filters are completely customized for each tenant, there are several filters that are commonly used for scenarios such as bounced messages. Some of these are shown below.
Undeliverable Messages
Undeliverable messages can be identified by their subject line and in most cases the sender. Typically, the following two filters are created to match bounced messages and are placed at the top of the topic change filter group.
Check Subject Line
Expression: Subject Matches - Undelivered Mail Returned to Sender|failure notice|Returned mail|Undeliverable Mail|Delivery Status Notification|Mail could not be delivered|Mail delivery failed|Delayed Mail
Action: Change topic to _Undeliverable
Check From Address
Expression: From Matches - postmaster|mailer-daemon
Action: Change topic to _Undeliverable
Out of Office Messages
Out of Office messages can be identified by their subject line
Check Subject Line
Expression: Subject Matches - Automatic reply|Out of Office|Automatische Antwort|Niet aanwezig|Automatisch antwoord|Abwesenheit|Ya no escribir a este correo|Abwesend|Abwesenheitsnotiz|out of the office|kann ihre Mail nicht empfangen!
Action: Change topic to _Undeliverable or _Out of Office