We have collected information about Active Delivery Queue for you. Follow the links to find out details on Active Delivery Queue.
https://docs.microsoft.com/en-us/Exchange/mail-flow/queues/queues
For delivery queues, the value of this field is effectively the name of the queue. The value of NextHopDomain isn't always a domain name. For example, the value could be the name of the target Active Directory site or database availability group (DAG). Think of this field as the next hop name.
https://docs.microsoft.com/en-us/Exchange/mail-flow/queues/queued-message-properties
Active: If the message is in a delivery queue, the message is being delivered to its destination. If the message is in the Submission queue, the message is being processed by the categorizer.
https://activemq.apache.org/redelivery-policy
9 rows · Sets the maximum number of times a message will be redelivered before it is considered a …
https://www.ibm.com/support/knowledgecenter/en/SSDKXQ_6.3.0/com.ibm.itcamms.doc_6.3/exchange/attr_msetrque.html
Active Mailbox Delivery Queue Length The number of messages queued for delivery to an active mailbox. The value format is a 4-byte integer. Active Non-SMTP Delivery Queue Length The number of messages queued for delivery to a Non-SMTP transport. The value format is a 4-byte integer.
https://activemq.apache.org/components/artemis/documentation/latest/undelivered-messages.html
To prevent a client infinitely receiving the same undelivered message (regardless of what is causing the unsuccessful deliveries), messaging systems define dead letter addresses: after a specified unsuccessful delivery attempts, the message is removed from its queue and sent to a dead letter address.
https://secure.n-able.com/webhelp/NC_11-0-0_en/Content/Help_20/Services/Exchange/Services_Exchange_Delivery_Queue_13_New.htm
Use the Get-Counter command on the metric value specified in counter path, using the name of the queue you want to monitor. For example, for Active Mailbox Delivery Queue Length: Get-Counter "\MSExchangeTransport Queues(_total)\Active Mailbox Delivery Queue Length.
https://docs.microsoft.com/en-us/exchange/queues-exchange-2013-help
Active: If the message is in a delivery queue, the message is being delivered to its destination. If the message is in the Submission queue, the message is being processed by the categorizer.
https://www.activexperts.com/admin/exchange/transport-server/microsoft-exchange-transport-server-transport-queue-length/
12 rows · Counter Name Description; Counter Name: \MSExchangeTransport Queues(_total)\Active …
https://serverfault.com/questions/722483/postfix-sending-delay-many-queue-active-messages-in-log
So it seems that "queue active" may mean that the message is being moved to the active queue. 2) The "delays" are reported to be in this order: smtpd, cleanup, qmgr and local, in such cases where the mail is not internal, you will see the last time is that of the “smtp” daemon instead of “local”
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