Message Center - System Messages Queue

This article contains information on managing the Mimecast System Messages Queue, including viewing, retrying, rejecting, and early bouncing system notification messages that are queued for delivery attempts.

The System Messages Queue displays all system notification messages that are currently being processed by Mimecast. These notifications include delivery status notifications and challenge response messages. Typically, notifications are only temporarily queued in the System Messages Queue and once delivered, will be removed from the queue. Those that cannot be delivered will remain on retry in the System Messages Queue.

System notifications are not subject to the same auditing and tracking controls as normal emails and are therefore shown in a separate queue. All other emails being processed by Mimecast are displayed in the Processing Queue.

Typically, system notifications will be delivered immediately. Therefore, the System Messages Queue may appear empty, as system notifications briefly enter the queue and are then successfully delivered. Emails will only remain in the queue if Mimecast is unable to deliver these notifications.

The System Messages Queue can be used to review system-generated messages that Mimecast cannot currently deliver and are queued for retry. Mimecast will attempt to deliver these messages until they expire after 30 retries.

Using the System Queue

1. Log in to the Mimecast Administration Console.
2. Navigate to Message Center | Processing Queues | System Messages Queue.

The following information is provided:

Column	Entries	Description
From (Header)	Email address of sender.	Details of the sender.
To	Email address of the recipient.	Details of the recipient.
Route	Description of the route.	Shows the direction of the email (inbound, outbound, or internal).
Message Type	Del Bounce.	Type of System Notification.
Information	Message information.	Description of the reason the message can/cannot be delivered.
Date/Time	Date and Time.	Date and Time Message is sent.
Attempts	Numeric value between 1 and 31.	The number of retry attempts for this email.

Once the email in question has been located, administrators are able to manually Retry, Reject, or Early bounce the email.

For a single entry, click on the context menu icon and select the desired action, or for multiple entries, use the check box next to the message and select from the options in the top toolbar:

Icon	Action	Result
Retry Selected Items	Forces a manual retry of the email.	Email delivery is immediately retried, and the retry count increases by one.
Reject Selected Items	Rejects the email.	Email is rejected and removed from the Delivery Queue. A delivery failure notification is sent to the internal sender of the email.
Early Bounce Selected Items	Early bounces the email.	Causes the delivery attempts to be increased to a maximum of 30 attempts, causing delivery to fail. A delivery failure notification is sent to the internal sender of the email, but the message is recoverable as it has been accepted.