Microsoft Exchange


This ZenPack is developed and supported by Zenoss Inc. Commercial ZenPacks are available to Zenoss commercial customers only. Contact Zenoss to request more information regarding this or any other ZenPacks. Click here to view all available Zenoss Commercial ZenPacks.


Version 1.1.2- Download
Released on 2019/01/17
Requires PythonCollector ZenPack, ZenPackLib ZenPack, Microsoft Windows ZenPack
Compatible with Zenoss Resource Manager 6.x and Zenoss Cloud
Version 1.0.6- Download
Released on 2016/07/13
Requires PythonCollector ZenPack, ZenPackLib ZenPack, Microsoft Windows ZenPack
Compatible with Zenoss Core 4.2.5, Zenoss Core 5.0.x, Zenoss Core 5.1.x, Zenoss Core 5.2.x, Zenoss Resource Manager 4.2.5, Zenoss Resource Manager 5.0.x, Zenoss Resource Manager 5.1.x, Zenoss Resource Manager 5.2.x

Microsoft Exchange ZenPack

Monitoring for Microsoft Exchange Server Devices.


This ZenPack provides support for monitoring Microsoft Exchange Server. Monitoring is performed using the Windows Remote Management (WinRM) to collect Perfmon data.


The features added by this ZenPack can be summarized as follows. They are each detailed further below.

  • Discovery of Exchange components
  • Performance monitoring
  • Service monitoring


The following components will be automatically discovered through the Windows server address, username and password you provide. The properties and relationships will be periodically updated by modeling.

Exchange Server

Attributes: Name, Version, Is Client Access Role, Is Mailbox Role, Is Hub Transport Role

Relationships: Mailbox Databases
Mailbox Database

Attributes: Name, Is Mailbox Database, Is Public Folder Database

Relationships: Exchange Server

Performance Monitoring

Performance counters are collected using the PowerShell Get-Counter Cmdlet within a remote shell (WinRS). The following metrics will be collected every 5 minutes by default. Any other Windows Perfmon counters can also be collected by adding them to the appropriate monitoring template.

\ASP.NET\Application Restarts
\ASP.NET\Request Wait Time
\ASP.NET\Worker Process Restarts
\MSExchangeAB\NSPI Connections Current
\MSExchangeAB\NSPI Connections/sec
\MSExchangeAB\NSPI RPC Browse Requests Average Latency
\MSExchangeAB\NSPI RPC Requests Average Latency
\MSExchangeAB\NSPI RPC Requests/sec
\MSExchangeAB\Referral RPC Requests Average Latency
\MSExchangeAB\Referral RPC Requests/sec
\MSExchange Availability Service\Availability Requests (sec)
\MSExchange Availability Service\Average Time to Process a Free Busy Request
\MSExchange ActiveSync\Current Requests
\MSExchange ActiveSync\Ping Commands Pending
\MSExchange ActiveSync\Requests/sec
\MSExchange ActiveSync\Sync Commands Pending
\MSExchange ActiveSync\Sync Commands/sec
\MSExchange Control Panel\ASP.Net Request Failures/sec
\MSExchange Control Panel\Explicit Sign-On Inbound Proxy Requests/sec
\MSExchange Control Panel\Explicit Sign-On Inbound Proxy Sessions/sec
\MSExchange Control Panel\Explicit Sign-On Outbound Proxy Requests/sec
\MSExchange Control Panel\Explicit Sign-On Outbound Proxy Sessions/sec
\MSExchange Control Panel\Explicit Sign-On Standard RBAC Requests/sec
\MSExchange Control Panel\Explicit Sign-On Standard RBAC Sessions/sec
\MSExchange Control Panel\Inbound Proxy Requests/sec
\MSExchange Control Panel\Inbound Proxy Sessions/sec
\MSExchange Control Panel\Outbound Proxy Requests/sec
\MSExchange Control Panel\Outbound Proxy Requests - Average Response Time
\MSExchange Control Panel\Outbound Proxy Sessions/sec
\MSExchange Control Panel\PowerShell Runspaces - Activations/sec
\MSExchange Control Panel\PowerShell Runspaces - Average Active Time
\MSExchange Control Panel\PowerShell Runspaces/sec
\MSExchange Control Panel\RBAC Sessions/sec
\MSExchange Control Panel\Requests - Activations/sec
\MSExchange Control Panel\Requests - Average Response Time
\MSExchange OWA\Average Search Time
\MSExchange OWA\Current Unique Users
\MSExchange OWA\Requests/sec
\MSExchange RpcClientAccess\User Count
\MSExchange RpcClientAccess\Active User Count
\MSExchange RpcClientAccess\Connection Count
\MSExchange RpcClientAccess\RPC Averaged Latency
\MSExchange RpcClientAccess\RPC Operations/sec
\MSExchange RpcClientAccess\RPC Requests
\Web Service(_Total)\Connection Attempts/sec
\Web Service(_Total)\Current Connections
\Web Service(_Total)\Other Request Methods/sec
\MSExchangeFDS:OAB(_Total)\Download Tasks Completed
\MSExchangeFDS:OAB(_Total)\Download Task Queued
\MSExchange Database(Information Store)\Log Record Stalls/sec
\Process(MSExchangeMailboxAssistants)\% Processor Time
\MSExchange Calendar Attendant\Average Calendar Attendant Processing time
\MSExchange Calendar Attendant\Requests Failed
\MSExchange Database(information store)\I/O Log Reads Average Latency
\MSExchange Database(information store)\I/O Database Reads (Attached) Average Latency
\MSExchange Database(information store)\I/O Database Reads (Recovery) Average Latency
\MSExchange Database(information store)\I/O Database Writes (Attached) Average Latency
\MSExchange Database(information store)\I/O Database Writes (Recovery) Average Latency
\MSExchange Database(information store)\I/O Log Writes Average Latency
\MSExchange Database(Information Store)\Database Page Fault Stalls/sec
\MSExchange Database(Information Store)\Database Cache % Hit
\MSExchange Database(Information Store)\Database Cache Size (MB)
\MSExchange Database(Information Store)\Log Bytes Write/sec
\MSExchange Database(Information Store)\Log Threads Waiting
\MSExchange Database(Information Store)\Version buckets allocated
\MSExchange Resource Booking\Average Resource Booking Processing Time
\MSExchange Resource Booking\Requests Failed
\MSExchange Store Interface(_Total)\RPC Requests outstanding
\MSExchange Search Indices(_Total)\Average Document Indexing Time
\MSExchange Search Indices(_Total)\Average Latency of RPCs Used to Obtain Content
\MSExchangeIS Mailbox(_Total)\Messages Delivered/sec
\MSExchangeIS Mailbox(_Total)\Messages Queued for Submission
\MSExchangeIS Mailbox(_Total)\Messages Sent/sec
\MSExchangeIS Mailbox(_Total)\Messages Submitted/sec
\MSExchangeIS Mailbox(_Total)\Search Task Rate
\MSExchangeIS Mailbox(_Total)\Slow Findrow Rate
\MSExchangeIS Public(_Total)\Messages Queued for Submission
\MSExchangeIS Public(_Total)\Replication Receive Queue Size
\MSExchangeIS\Client: RPCs Failed/sec
\MSExchangeIS\RPC Averaged Latency
\MSExchangeIS\RPC Client Backoff/sec
\MSExchangeIS\Slow QP Threads
\MSExchangeIS\Slow Search Threads
\MSExchangeIS\User Count
\Process(Microsoft.Exchange.Search.ExSearch)\% Processor time
\Process(msftesql)\% Processor Time
\MSExchangeTransport Queues(_total)\Active Mailbox Delivery Queue Length
\MSExchangeTransport Queues(_total)\Active Non-Smtp Delivery Queue Length
\MSExchangeTransport Queues(_total)\Messages Completed Delivery Per Second
\MSExchangeTransport Queues(_total)\Messages Queued for Delivery Per Second
\MSExchangeTransport Queues(_total)\Messages Submitted Per Second
\MSExchangeTransport Queues(_total)\Poison Queue Length
\MSExchangeTransport Queues(_total)\Retry Mailbox Delivery Queue Length
\MSExchangeTransport Queues(_total)\Retry Non-Smtp Delivery Queue Length
\MSExchangeTransport Queues(_total)\Submission Queue Length
\MSExchangeTransport Queues(_total)\Unreachable Queue Length
\MSExchangeTransport SmtpReceive(_total)\Average bytes/message
\MSExchangeTransport SmtpReceive(_total)\Messages Received/sec
\MSExchangeTransport SmtpSend(_total)\Messages Sent/sec
\MSExchange Store Driver\Inbound: LocalDeliveryCallsPerSecond
\MSExchange Store Driver\Inbound: MessageDeliveryAttemptsPerSecond
\MSExchange Store Driver\Inbound: Recipients Delivered Per Second
\MSExchange Store Driver\Outbound: Submitted Mail Items Per Second
\MSExchangeTransport Dumpster\Dumpster Deletes/sec
\MSExchangeTransport Dumpster\Dumpster Inserts/sec
\MSExchangeTransport Dumpster\Dumpster Item Count
\MSExchangeTransport Dumpster\Dumpster Size
\MSExchangeTransport Queues(_total)\Active Remote Delivery Queue Length
\MSExchangeTransport Queues(_total)\Aggregate Delivery Queue Length (All Queues)
\MSExchangeTransport Queues(_total)\Largest Delivery Queue Length
\MSExchangeTransport Queues(_total)\Retry Remote Delivery Queue Length
\MSExchange Assistants - Per Database(msexchangemailboxassistants-)\Average Event Processing Time in Seconds
\MSExchange Assistants - Per Database(msexchangemailboxassistants-)\Events in queue
\MSExchange Assistants - Per Database(msexchangemailboxassistants-)\Events Polled/sec
\MSExchange Assistants - Per Database(msexchangemailboxassistants-)\Mailboxes Processed/sec
\MSExchange Replication(_total)\CopyQueueLength
\MSExchange Replication(_total)\ReplayQueueLength
\MSExchange Assistants - Per Database(msexchangemailsubmission-)\Average Event Processing Time in Seconds
\MSExchange Assistants - Per Database(msexchangemailsubmission-)\Events Polled/sec
\MSExchange Assistants - Per Database(msexchangemailsubmission-)\Events in queue
\MSExchange Assistants - Per Database(msexchangemailsubmission-)\Mailboxes Processed/sec
\MSExchange Database ==> Instances(Information Store/)\I/O Database Reads Average Latency
\MSExchange Database ==> Instances(Information Store/)\I/O Database Writes Average Latency
\MSExchange Database ==> Instances(Information Store/)\Log Generation Checkpoint Depth
\MSExchange Search Indices()\Average Document Indexing Time
\MSExchange Search Indices()\Average Latency of RPCs Used to Obtain Content
\MSExchange Search Indices()\Full Crawl Mode Status
\MSExchangeIS Mailbox()\Search Task Rate
\MSExchangeIS Mailbox()\Slow Findrow Rate
The following services will be monitored:




There are thresholds associated with several of the collected counters in the above templates.


activesync_current_requests - Between 50 and 100

address_book_referral_rpc_requests_latency - Less than 1000
address_book_rpc_browse_requests_latency - Less than 1000
address_book_rpc_requests_latency - Less than 1000
asp_application_restarts - Less than 0
asp_request_wait_time - Less than 0
asp_worker_process_restarts - Less than 0
availability_service_time - Less than 5
control_panel_outbound_proxy_requests_response_time - Less than 6000
control_panel_requests_response_time - Less than 6000
owa_average_search_time - Less than 5000
rpc_client_access_rpc_averaged_latency - Less than 250
rpc_client_access_rpc_requests - Less than 40

oab_download_tasks_queued - Less than 0


calendar_attendant_requests_failed - Less than 0

mailbox_database_cache_size - At least 2 GB free
mailbox_database_page_flush - Less than 0
mailbox_log_bytes_write - Less than 10000000
mailbox_log_read_latency - Less than 200
mailbox_log_stalls - Less than 10
mailbox_log_threads_waiting - Less than 10
mailbox_read_attached_latency - Less than 20
mailbox_read_recovery_latency - Less than 20
mailbox_version_buckets - Less than 12000
resource_booking_requests_failed - Less than 0
rpc_latency_average - Less than 100
rpc_requests_outstanding - Less than 0

mailbox_average_document_indexing_time - Less than 30000

mailbox_client_rpc_fails - Less than 0
mailbox_messages_queued - Less than 50
mailbox_public_message_queued - Less than 20
mailbox_slow_qp_threads - Less than 10
mailbox_slow_search_threads - Less than 10
replication_receive_queue_size - Less than 100

active_mailbox_delivery_queue_length - Less than 250

active_non_smtp_delivery_queue_length - Less than 250
poison_queue_length - Less than 0
retry_mailbox_delivery_queue_length - Less than 100
retry_non_smtp_delivery_queue_length - Less than 100
submission_queue_length - Less than 100
unreachable_queue_length - Less than 100

active_remote_delivery_queue_length - Less than 250

largest_delivery_queue_length - Less than 200
retry_remote_delivery_queue_length - Less than 100
total_delivery_queue_length - Between 3000 and 5000


To use the ZenPack, add the zenoss.winrm.WinExchange modeler plugin to an existing Windows device and run the modeler. For a new device, follow the directions for adding a new device using the Microsoft Windows ZenPack

Note: The monitoring user must be a domain user.

Note: If monitoring Exchange with a non-administrator user, the user must be a member of the Active Directory group "View Only Organization Management" for 2010 and later installations.

Configuration Options

  • zExchangeUser
    If the NETBIOS domain name for the Exchange Server is different than the domain name used in the zWinRMUser property, enter that information here in either ''netbios'' or ''user@netbios'' format. This can also be used if a different user account needs to be used to model the Exchange Server.
  • zExchangePassword
    Enter the password of the above account here. It can be left blank if it is the same as zWinRMPassword.
  • zExchangeNoProxy
    Defines whether Session Option NoProxyServer should be added to the PowerShell command during modeling device or not.

Limitations of Current Release

  • Support for Exchange Server 2010, 2013 and 2016 only. Support for future versions of Exchange will be added when they are released by Microsoft.
  • Exchange Server 2016 will use the same templates as Exchange Server 2013
  • There are three duplicate counters being collected for Exchange Server in the Windows ZenPack. There is a fix available in v2.8.4 of the Microsoft.Windows ZenPack which will allow viewing of these counters across multiple graphs.


The first step in troubleshooting any monitoring issues is to scan the zenpython log for errors. Most issues can be solved by troubleshooting the Windows ZenPack.

There are currently no logon servers available to service the logon request

If you see this error during modeling, check the NETBIOS name against the users domain name. If they are not the same then use the zExchangeUser/zExchangePassword configuration options.

The WinRM client received an HTTP status code of 403 from the remote WS-Management service

If you use WinHTTP proxy on your exchange server and see this error during modeling, check zExchangeNoProxy property and set it to true.

Zenoss Analytics

This ZenPack provides additional support for Zenoss Analytics. Perform the following steps to install extra reporting resources into Zenoss Analytics after installing the ZenPack.

  1. Copy from $ZENHOME/ZenPacks/ZenPacks.zenoss.Microsoft.Exchange/ZenPacks/zenoss/Microsoft/Exchange/analytics/ on your Zenoss server.
  2. Navigate to Zenoss Analytics in your browser.
  3. From the Zenoss Instance list of options, select Internal Authentication.
  4. Login as an Analytics user with superuser privileges.
  5. Remove any existing Microsoft Exchange ZenPack folder.
    1. Choose Repository from the View menu at the top of the page.
    2. Expand Public in the list of folders.
    3. Right-click on Microsoft Exchange ZenPack folder and choose Delete.
    4. Confirm deletion by clicking OK.
  6. Add the new Microsoft Exchange ZenPack folder.
    1. Choose Server Settings from the Manage menu at the top of the page.
    2. Choose Import in the left page.
    3. Remove checks from all check boxes.
    4. Click Choose File to import a data file.
    5. Choose the file copied from your Zenoss server.
    6. Click Import.

You can now navigate back to the Microsoft Exchange ZenPack folder in the repository to see the following resources added by the bundle.


: Microsoft Exchange Domain

Domains can be used to create Ad Hoc views using the following steps.

  1. Choose ''Ad Hoc View'' from the ''Create'' menu.
  2. Click ''Domains'' at the top of the data chooser dialog.
  3. Expand ''Public'' then ''Microsoft Exchange ZenPack''.
  4. Choose the ''Microsoft Exchange Domain'' domain

Service Impact

When combined with the Zenoss Service Dynamics product, this ZenPack adds built-in service impact capability for services running on Microsoft Windows. The following service impact relationships are automatically added. These will be included in any services that contain one or more of the explicitly mentioned entities.

Service Impact Relationships

The Windows server is impacted by the Exchange Server.

The Exchange Server is impacted by the Mailbox Databases.

Installed Items

Installing this ZenPack will add the following items to your Zenoss system.

Modeler Plugins


Monitoring Templates

ClientAccessRole (in /Server/Microsoft)

ClientAccessRole-2010 (in /Server/Microsoft)
IISADMIN (in /Server/Microsoft)
MSExchangeADTopology (in /Server/Microsoft)
MSExchangeFDS (in /Server/Microsoft)
MSExchangeIS (in /Server/Microsoft)
MSExchangeMailSubmission (in /Server/Microsoft)
MSExchangeMailboxAssistants (in /Server/Microsoft)
MSExchangeMonitoring (in /Server/Microsoft)
MSExchangeSA (in /Server/Microsoft)
MSExchangeSearch (in /Server/Microsoft)
MSExchangeServiceHost (in /Server/Microsoft)
MSExchangeTransportLogSearch (in /Server/Microsoft)
MailboxDatabase (in /Server/Microsoft)
MailboxDatabase-2010 (in /Server/Microsoft)
MailboxRole (in /Server/Microsoft)
MailboxRole-2010 (in /Server/Microsoft)
TransportRole (in /Server/Microsoft)
TransportRole-2010 (in /Server/Microsoft)
W3SVC (in /Server/Microsoft)
msftesql-Exchange (in /Server/Microsoft)



  • Fix MicrosoftExchange - N/A for some graphs of Exchange Server component and on Graphs tab (ZPS-2197)
  • Fix Azure ZenPack and Exchange Installation Conflict (ZPS-4417)
  • Fix Exchange: Modeler script passes password in plain text (ZPS-3482)
  • Tested with Zenoss Resource Manager 6.3.1 and Zenoss Cloud


  • Fix Unable to model due to Exchange Server missing Mailbox role (ZPS-2641)
  • Fix The WinRM client received an HTTP status code of 403 from the remote WS-Management service (ZPS-2378)
  • Testing was provided on Zenoss Resource Manager : 4.2.5; 5.3.3. and 6.1.0 and Serevice Impact 5.2.3


  • Use Microsoft Windows ZenPack 2.7.0 session management (ZPS-1227)
  • Fix [Microsoft Exchange] Netbios username function fails to account for subdomains (ZPS-1942)
  • Make use of new ZenPackLib ZenPack
  • Fix password in log when powershell error occurs during modeling (ZPS-1766)
  • Fix MicrosoftExchange - Exchange services are monitored but State is 'Unknown' (ZPS-2202)
  • Fix Mailbox Databases Discovered Under Device Not Hosting the Database (ZPS-1477)
  • Verify support for Exchange 2016 (ZPS-2214)


  • Fix Exchange 2013 Missing Counter Events


  • Fix 2.6.0 missing hardware relations (ZEN-23968)


  • Fix impact to be compatible with Windows ZenPack version 2.6.0


  • Fix Exchange ZenPack: WinRM error during modeling (ZEN-23351)
  • Fix Microsoft Exchange modeler type mismatch (ZEN-23317)
  • Update to 1.0.12


  • Fix Exchange modeler plugin gets unauthorized error (ZEN-22314)


  • Inital release of Exchange ZenPack