<%NUMBERING1%>.<%NUMBERING2%>.<%NUMBERING3%> PRTG Manual: Microsoft 365 Mailbox Sensor
The Microsoft 365 Mailbox sensor monitors a folder of a Microsoft 365 mailbox via Microsoft Graph.
Microsoft 365 Mailbox Sensor
For a detailed list and descriptions of the channels that this sensor can show, see section Channel List.
Sensor in Other Languages
Dutch: Microsoft 365 Mailbox
French: Microsoft 365 Mailbox
German: Microsoft 365 Mailbox
Japanese: Microsoft 365 Mailbox
Portuguese: Microsoft 365 Mailbox
Russian: Microsoft 365 Mailbox
Simplified Chinese: Microsoft 365 Mailbox
Spanish: Microsoft 365 Mailbox
Remarks
This sensor requires credentials for Microsoft 365 in the settings of an object that is higher in the object hierarchy.
This sensor requires that the PRTG web server accepts incoming HTTPS requests.
This sensor requires permissions for Microsoft Graph.
This sensor requires that you provide a redirect URI in the Microsoft Azure Portal.
This sensor does not support regular expressions (regex). Contact roadmap@paessler.com if your Microsoft 365 Mailbox sensor use cases require regex support.
This sensor requires that you provide the DNS name or an IP address of your PRTG web server as redirect URI in the Microsoft Azure Portal according the following pattern: https://<yourprtgserver>/ms365.htm
Microsoft Azure only accepts redirect URIs that start with HTTPS.
The Add Sensor dialog appears when you manually add a new sensor to a device. It only shows the settings that are required to create the sensor. You can change nearly all settings on the sensor's Settings tab after creation.
PRTG performs a meta-scan before you can add this sensor and requires basic information in advance. Provide the required information in the dialog box that appears. PRTG then recognizes all items that are available for monitoring based on your input.
Step 1: Microsoft 365 Mailbox
Setting
Description
Shared Mailbox User Principal Name (optional)
Optionally enter the user principal name of a shared mailbox to which the authenticated user account has access. Leave the field empty to use the mailbox of the authenticated user account.
In most cases, the user principal name is the email address of the shared mailbox.
Step 2: Microsoft 365 Specific
Setting
Description
Folder
Select the folders that you want to monitor. PRTG creates one sensor for each folder that you select.
Enable check boxes in front of the respective lines to select the items. Use the check box in the table header to select all items or to cancel the selection. In large tables, use the search function in the upper-right corner.
Basic Sensor Settings
Click the Settings tab of a sensor to change its settings.
If the name contains angle brackets (<>), PRTG replaces them with braces ({}) for security reasons. For more information, see the Knowledge Base: What security features does PRTG include?
This setting is for your information only. You cannot change it.
Tags
Enter one or more tags. Confirm each tag with the Spacebar key, a comma, or the Enter key. You can use tags to group objects and use tag-filtered views later on. Tags are not case-sensitive. Tags are automatically inherited.
It is not possible to enter tags with a leading plus (+) or minus (-) sign, nor tags with parentheses (()) or angle brackets (<>).
For performance reasons, it can take some minutes until you can filter for new tags that you added.
The sensor has the following default tags that are automatically predefined in the sensor's settings when you add the sensor:
mailsensor
microsoft365
microsoft365sensor
Priority
Select a priority for the sensor. This setting determines the position of the sensor in lists. The highest priority is at the top of a list. Choose from the lowest priority () to the highest priority ().
Usually, a sensor connects to the IP Address/DNS Name of the parent device. See the device settings for details. For some sensors, you can explicitly define the monitoring target in the sensor settings.
Microsoft 365 Specific
Microsoft 365 Specific
Setting
Description
Folder Name
Shows the name of the target folder that this sensor monitors.
PRTG shows this value for reference purposes only. If you need to change this value, add the sensor anew.
Folder Path
Shows the path of the target folder that this sensor monitors.
PRTG shows this value for reference purposes only. If you need to change this value, add the sensor anew.
Microsoft OAuth 2.0 Specific
Microsoft OAuth 2.0 Specific
Setting
Description
Authorization
Click Renew to start the Microsoft Azure authorization process.
Microsoft 365 Mailbox
Microsoft 365 Mailbox
Setting
Description
Shared Mailbox User Principal Name (optional)
Shows the user principal name of a shared mailbox to which the authenticated user account has access.
PRTG shows this value for reference purposes only. If you need to change this value, add the sensor anew.
Microsoft 365 Settings
Microsoft 365 Settings
Setting
Description
Filter by 'Subject'
Select if you want to filter the emails by their subject. Choose between:
Disable (default): Do not use Filter by 'Subject'.
Equals: Filter emails whose subject equals the defined string.
Contains all: Filter emails whose subject contains all defined strings.
Contains any: Filter emails whose subject contains at least one of the defined strings.
If you enable Filter by 'Subject', Filter by 'From', or Filter by 'Body', the sensor creates three additional channels that monitor the emails that match your filters.
If you disable the filters, the additional channels remain, but do not receive data anymore.
Search for
Enter a string that you want to use for Filter by 'Subject'.
If you select Contains all or Contains any above, you can also enter a comma-separated list of strings to search for more than one string. For example, if you select Contains all and enter backup and failed, the sensor counts all items that contain both strings. If you select Contains any and enter backup and failed, the sensor counts all items that contain at least one of the strings.
Filter by 'From'
Select if you want to filter the 'From' field of the emails. Choose between:
Disable (default): Do not use Filter by 'From'.
Equals: Filter emails whose 'From' field equals the defined string.
Contains all: Filter emails whose 'From' field contains all defined strings.
Contains any: Filter emails whose 'From' field contains at least one of the defined strings.
If you enable Filter by 'Subject', Filter by 'From', or Filter by 'Body', the sensor creates three additional channels that monitor the emails that match your filters.
If you disable the filters, the additional channels remain, but do not receive data anymore.
Search for
Enter a string that you want to use for Filter by 'From'.
If you select Contains all or Contains any above, you can also enter a comma-separated list of strings to search for more than one string. For example, if you select Contains all and enter backup and failed, the sensor counts all items that contain both strings. If you select Contains any and enter backup and failed, the sensor counts all items that contain at least one of the strings.
Filter by 'Body'
Select if you want to filter the emails by their body. Choose between:
Disable (default): Do not use Filter by 'Body'.
Equals: Filter emails whose body equals the defined string.
Contains all: Filter emails whose body contains all defined strings.
Contains any: Filter emails whose body contains at least one of the defined strings.
If you enable Filter by 'Subject', Filter by 'From', or Filter by 'Body', the sensor creates three additional channels that monitor the emails that match your filters.
If you disable the filters, the additional channels remain, but do not receive data anymore.
Search for
Enter a string that you want to use for Filter by 'Body'.
If you select Contains all or Contains any above, you can also enter a comma-separated list of strings to search for more than one string. For example, if you select Contains all and enter backup and failed, the sensor counts all items that contain both strings. If you select Contains any and enter backup and failed, the sensor counts all items that contain at least one of the strings.
Filter by 'Age'
Select if you want to filter the emails by their age. The filter will be applied to all channels of the sensor.
Maximum Age (Minutes)
Enter the maximum age in minutes. The sensor only processes emails that are younger. Enter an integer.
Sensor Display
Sensor Display
Setting
Description
Primary Channel
Select a channel from the list to define it as the primary channel. In the device tree, the last value of the primary channel is always displayed below the sensor's name. The available options depend on what channels are available for this sensor.
You can set a different primary channel later by clicking below a channel gauge on the sensor's Overview tab.
Graph Type
Define how different channels are shown for this sensor:
Show channels independently (default): Show a graph for each channel.
Stack channels on top of each other: Stack channels on top of each other to create a multi-channel graph. This generates a graph that visualizes the different components of your total traffic. You cannot use this option in combination with manual Vertical Axis Scaling (available in the channel settings).
Stack Unit
This setting is only visible if you enable Stack channels on top of each other as Graph Type. Select a unit from the list. All channels with this unit are stacked on top of each other. By default, you cannot exclude single channels from stacking if they use the selected unit. However, there is an advanced procedure to do so.
Debug Options
Debug Options
Setting
Description
Result Handling
Define what PRTG does with the sensor result:
Discard result: Do not store the sensor result.
Store result: Store the last sensor result in the \Logs\sensors subfolder of the PRTG data directory on the probe system. The file name is Result of Sensor [ID].log. This setting is for debugging purposes. PRTG overwrites this file with each scanning interval.
This option is not available when the sensor runs on the hosted probe of a PRTG Hosted Monitor instance.
In a cluster, PRTG stores the result in the PRTG data directory of the master node.
Inherited Settings
By default, all of these settings are inherited from objects that are higher in the hierarchy. We recommend that you change them centrally in the root group settings if necessary. To change a setting for this object only, click under the corresponding setting name to disable the inheritance and to display its options.
The minimum scanning interval of this sensor is 30 seconds.
The recommended scanning interval of this sensor is 10 minutes.
Scanning Interval
For more information, see section Root Group Settings, section Scanning Interval.
Schedules, Dependencies, and Maintenance Window
You cannot interrupt the inheritance for schedules, dependencies, and maintenance windows. The corresponding settings from the parent objects are always active. However, you can define additional schedules, dependencies, and maintenance windows. They are active at the same time as the parent objects' settings.
Schedules, Dependencies, and Maintenance Window
For more information, see section Root Group Settings, section Schedules, Dependencies, and Maintenance Window.
Access Rights
Access Rights
For more information, see section Root Group Settings, section Access Rights.
Channel Unit Configuration
Which channel units are available depends on the sensor type and the available parameters. If no configurable channels are available, this field shows No configurable channels.
Channel Unit Configuration
For more information, see section Root Group Settings, section Channel Unit Configuration.
Channel List
Which channels the sensor actually shows might depend on the target device, the available components, and the sensor setup.
Channel
Description
Downtime
In the channel table on the Overview tab, this channel never shows any values. PRTG uses this channel in graphs and reports to show the amount of time in which the sensor was in the Down status
Matching Emails
The number of emails that match the defined filters
This channel will only be created if you enable Filter by 'Subject', Filter by 'From', or Filter by 'Body'.
Newest Email
The age of the newest email
Newest Matching Email
The age of the newest email that matches the defined filters
This channel will only be created if you enable Filter by 'Subject', Filter by 'From', or Filter by 'Body'.
Number of Emails
The number of emails
This channel is the primary channel by default.
Oldest Email
The age of the oldest email
Oldest Matching Email
The age of the oldest email that matches the defined filters
This channel will only be created if you enable Filter by 'Subject', Filter by 'From', or Filter by 'Body'.
More
KNOWLEDGE BASE
How do I obtain credentials and set permissions for the Microsoft 365 Mailbox sensor?