Configure MSMQ input

Setting	Default	Effect
Visibility	Private	Private or public queue format.
Queue name	Empty	Queue identity. Validate machine/queue scope and service-account rights.
Delivery type	Express	MSMQ delivery mode; choose durable behaviour according to the queue design.
Use transaction	Cleared	Uses MSMQ transactional operations. Queue type and operation must be compatible.
Use direct format name	Cleared	Uses direct format rather than ordinary queue name resolution.
Direct format type	OS	Direct-format variant.
Authenticate	Cleared	MSMQ authentication flag; also configure Windows/queue permissions.
Read timeout	1	Receive wait. A source comment notes future zero/unlimited behaviour, so do not assume 0 is currently a monitor-safe indefinite wait.
After receiving	Nothing	Current enum exposes only no additional post-receive action.

Test empty queue, one/many messages, transaction compatibility, permissions, poison/invalid messages, timeout and service restart. Establish when a message is removed/committed relative to downstream Flow success and how it is redelivered or dead-lettered; the base setting alone does not prove exactly-once processing.