WINDOWS-NT-PERFORMANCE-EXCHANGE :: mtaWorkQueueLength

MIB Reference — IPNetwork Monitor · Updated October 06, 2026

All MIBs › WINDOWS-NT-PERFORMANCE-EXCHANGE › mtaWorkQueueLength

mtaWorkQueueLength

Module: WINDOWS-NT-PERFORMANCE-EXCHANGE

OID (symbolic): WINDOWS-NT-PERFORMANCE-EXCHANGE::mtaWorkQueueLength

OID (numeric): 1.3.6.1.4.1.311.1.1.3.1.1.1.8

Node type: OBJECT-TYPE

Type: INTEGER

Access: read-only

Description: Work Queue Length is the number of outstanding messages in the Work Queue, which indicates the number of messages not yet processed to completion by the MTA.

What is mtaWorkQueueLength?

The number of messages still outstanding in the MTA's work queue awaiting processing, a key backlog indicator for mail delivery delays.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.311.1.1.3.1.1.1.8
snmpwalk -v2c -c public <target> WINDOWS-NT-PERFORMANCE-EXCHANGE::mtaWorkQueueLength

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.311.1.1.3.1.1.1.8.1
snmpget -v2c -c public <target> WINDOWS-NT-PERFORMANCE-EXCHANGE::mtaWorkQueueLength.1

Start monitoring Windows server running Microsoft Exchange Server (mail-queue/transport-throughput status) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the WINDOWS-NT-PERFORMANCE-EXCHANGE::mtaWorkQueueLength OID value, configure state conditions and alerts, and monitor any Windows server running Microsoft Exchange Server (mail-queue/transport-throughput status) from a single console.

OID Breakdown

Upper-level ancestors (13 from the standard OID tree / other modules)
Numeric OIDNameModule
1isoLANART-AGENT
1.3orgAirPair-MIB
1.3.6dodAirPair-MIB
1.3.6.1internetAirPair-MIB
1.3.6.1.4privateAirPair-MIB
1.3.6.1.4.1enterprisesAirPair-MIB
1.3.6.1.4.1.311microsoftEVNTAGENT-MIB
1.3.6.1.4.1.311.1softwareEVNTAGENT-MIB
1.3.6.1.4.1.311.1.1systemsMSFT-MIB
1.3.6.1.4.1.311.1.1.3osMSFT-MIB
1.3.6.1.4.1.311.1.1.3.1windowsNTMSFT-MIB
1.3.6.1.4.1.311.1.1.3.1.1workstationMSFT-MIB
1.3.6.1.4.1.311.1.1.3.1.1.1memoryWINDOWS-NT-PERFORMANCE
Numeric OIDNameModule
1.3.6.1.4.1.311.1.1.3.1.1.1.8mtaWorkQueueLengthWINDOWS-NT-PERFORMANCE-EXCHANGE