Email Activity

Email events report activities of emails.

Attributes

Caption	Name	Type	Description
Action	`action`	String	The normalized caption of `action_id`.
Action ID	`action_id`	Integer	The action taken by a control or other policy-based system leading to an outcome or disposition. Dispositions conform to an action of `1` 'Allowed' or `2` 'Denied' in most cases. Note that `99` 'Other' is not an option. No action would equate to `1` 'Allowed'. An unknown action may still correspond to a known disposition. Refer to `disposition_id` for the outcome of the action. `0`: Unknown (`UNKNOWN`) `1`: Allowed (`ALLOWED`) `2`: Denied (`DENIED`) `99`: Other (`OTHER`)
Activity ID	`activity_id`	Integer	The normalized identifier of the activity that triggered the event. `0`: Unknown (`UNKNOWN`) `1`: Send (`SEND`) `2`: Receive (`RECEIVE`) `3`: Scan (`SCAN`) `99`: Other (`OTHER`)
Activity	`activity_name`	String	The event activity name, as defined by the activity_id.
Actor	`actor`	Actor[]	The actor object describes details about the user/role/process that was the source of the activity.
API Details	`api`	API[]	Describes details about a typical API (Application Programming Interface) call.
MITRE ATT&CK® Details	`attacks`	MITRE ATT&CK®[]	An array of MITRE ATT&CK® objects describing the tactics, techniques & sub-techniques identified by a security control or finding.
Attempt	`attempt`	Integer	The attempt number for attempting to deliver the email.
Authorization Information	`authorizations`	Authorization Result[]	Provides details about an authorization, such as authorization outcome, and any associated policies related to the activity/event.
SMTP Banner	`banner`	String	The initial SMTP connection response that a messaging server receives after it connects to a email server.
Category	`category_name`	String	The event category name, as defined by category_uid value.
Category ID	`category_uid`	Integer	The category unique identifier of the event. `4`: Network Activity (`NETWORK_ACTIVITY`)
Class	`class_name`	String	The event class name, as defined by class_uid value.
Class ID	`class_uid`	Integer	The unique identifier of a class. A class describes the attributes available in an event. `4009`: Email Activity (`EMAIL_ACTIVITY`)
Cloud	`cloud`	Cloud[]	Describes details about the Cloud environment where the event was originally created or logged.
Confidence	`confidence`	Integer	The confidence of the reported event severity as a percentage: 0%-100%. 🚧 WARNING: DEPRECATED Confidence has been deprecated since 1.1.0. Deprecated in upgrade from ocsf-0.31.1 to qdm-1.1.0
Connection Identifier	`connection_uid`	String	The network connection identifier. 🚧 WARNING: DEPRECATED Connection Identifier has been deprecated since 1.1.0. Deprecated in upgrade from ocsf-0.31.1 to qdm-1.1.0
Count	`count`	Integer	The number of times that events in the same logical group occurred during the event Start Time to End Time period.
Data	`data`	JSON	Additional data that is associated with the event. 🚧 WARNING: DEPRECATED Data has been deprecated since 1.1.0. Deprecated in upgrade from ocsf-0.31.1 to qdm-1.1.0
Device	`device`	Device[]	An addressable device, computer system or host.
Direction	`direction`	String	The direction of the email, as defined by the `direction_id` value.
Direction ID	`direction_id`	Integer	The direction of the email relative to the scanning host or organization. Email scanned at an internet gateway might be characterized as inbound to the organization from the Internet, outbound from the organization to the Internet, or internal within the organization. Email scanned at a workstation might be characterized as inbound to, or outbound from the workstation. `0`: Unknown (`UNKNOWN`) `1`: Inbound (`INBOUND`) `2`: Outbound (`OUTBOUND`) `3`: Internal (`INTERNAL`) `99`: Other (`OTHER`)
Disposition	`disposition`	String	The disposition name, normalized to the caption of the disposition_id value. In the case of 'Other', it is defined by the event source.
Disposition ID	`disposition_id`	Integer	Describes the outcome or action taken by a security control, such as access control checks, malware detections or various types of policy violations. `0`: Unknown (`UNKNOWN`) `1`: Allowed (`ALLOWED`) `10`: Exonerated (`EXONERATED`) `11`: Corrected (`CORRECTED`) `12`: Partially Corrected (`PARTIALLY_CORRECTED`) `13`: Uncorrected (`UNCORRECTED`) `14`: Delayed (`DELAYED`) `15`: Detected (`DETECTED`) `16`: No Action (`NO_ACTION`) `17`: Logged (`LOGGED`) `18`: Tagged (`TAGGED`) `19`: Alert (`ALERT`) `2`: Blocked (`BLOCKED`) `20`: Count (`COUNT`) `21`: Reset (`RESET`) `22`: Captcha (`CAPTCHA`) `23`: Challenge (`CHALLENGE`) `24`: Access Revoked (`ACCESS_REVOKED`) `25`: Rejected (`REJECTED`) `26`: Unauthorized (`UNAUTHORIZED`) `27`: Error (`ERROR`) `3`: Quarantined (`QUARANTINED`) `4`: Isolated (`ISOLATED`) `5`: Deleted (`DELETED`) `6`: Dropped (`DROPPED`) `7`: Custom Action (`CUSTOM_ACTION`) `8`: Approved (`APPROVED`) `9`: Restored (`RESTORED`) `99`: Other (`OTHER`)
Destination Endpoint	`dst_endpoint`	Network Endpoint[]	The responder (server) receiving the email.
Duration	`duration`	Long	The event duration or aggregate time, the amount of time the event covers from `start_time` to `end_time` in milliseconds.
Email	`email`	Email[]	The email object.
Email Authentication	`email_auth`	Email Authentication[]	The SPF, DKIM and DMARC attributes of an email.
Email UID	`email_uid`	String	The unique identifier of the email, used to correlate related email alert and activity events. 🚧 WARNING: DEPRECATED Email UID has been deprecated since 1.1.0. Deprecated in upgrade from ocsf-0.31.1 to qdm-1.1.0
End Time	`end_time`	Timestamp	The end time of a time period, or the time of the most recent event included in the aggregate event.
Enrichments	`enrichments`	Enrichment[]	The additional information from an external data source, which is associated with the event or a finding. For example add location information for the IP address in the DNS answers: `[{"name": "answers.ip", "value": "92.24.47.250", "type": "location", "data": {"city": "Socotra", "continent": "Asia", "coordinates": [-25.4153, 17.0743], "country": "YE", "desc": "Yemen"}}]`
Firewall Rule	`firewall_rule`	Firewall Rule[]	The firewall rule that triggered the event.
Malware	`malware`	Malware[]	A list of Malware objects, describing details about the identified malware.
Message	`message`	String	The description of the event/finding, as defined by the source.
Metadata	`metadata`	Metadata[]	The metadata associated with the event or a finding.
Observables	`observables`	Observable[]	The observables associated with the event or a finding.
OSINT	`osint`	OSINT[]	The OSINT (Open Source Intelligence) object contains details related to an indicator such as the indicator itself, related indicators, geolocation, registrar information, subdomains, analyst commentary, and other contextual information. This information can be used to further enrich a detection or finding by providing decisioning support to other analysts and engineers.
Raw Data	`raw_data`	JSON	The event data as received from the event source.
Record ID	`record_id`	String	Unique idenifier for the event
Severity	`severity`	String	The event/finding severity, normalized to the caption of the severity_id value. In the case of 'Other', it is defined by the source.
Severity ID	`severity_id`	Integer	The normalized identifier of the event/finding severity. The normalized severity is a measurement the effort and expense required to manage and resolve an event or incident. Smaller numerical values represent lower impact events, and larger numerical values represent higher impact events. `0`: Unknown (`UNKNOWN`) `1`: Informational (`INFORMATIONAL`) `2`: Low (`LOW`) `3`: Medium (`MEDIUM`) `4`: High (`HIGH`) `5`: Critical (`CRITICAL`) `6`: Fatal (`FATAL`) `99`: Other (`OTHER`)
SMTP Hello	`smtp_hello`	String	The value of the SMTP HELO or EHLO command sent by the initiator (client).
Source Endpoint	`src_endpoint`	Network Endpoint[]	The initiator (client) sending the email.
Start Time	`start_time`	Timestamp	The start time of a time period, or the time of the least recent event included in the aggregate event.
Status	`status`	String	The event status, normalized to the caption of the status_id value. In the case of 'Other', it is defined by the event source.
Status Code	`status_code`	String	The event status code, as reported by the event source. For example, in a Windows Failed Authentication event, this would be the value of 'Failure Code', e.g. 0x18.
Status Details	`status_detail`	String	The status detail contains additional information about the event/finding outcome.
Status ID	`status_id`	Integer	The normalized identifier of the event status. `0`: Unknown (`UNKNOWN`) `1`: Success (`SUCCESS`) `2`: Failure (`FAILURE`) `99`: Other (`OTHER`)
Event Time	`time`	Timestamp	The normalized event occurrence time or the finding creation time.
Timezone Offset	`timezone_offset`	Integer	The number of minutes that the reported event `time` is ahead or behind UTC, in the range -1,080 to +1,080.
Type Name	`type_name`	String	The event/finding type name, as defined by the type_uid.
Type ID	`type_uid`	Long	The event/finding type ID. It identifies the event's semantics and structure. The value is calculated by the logging system as: `class_uid * 100 + activity_id`. `400900`: Email Activity: Unknown (`EMAIL_ACTIVITY_UNKNOWN`) `400901`: Email Activity: Send (`EMAIL_ACTIVITY_SEND`) `400902`: Email Activity: Receive (`EMAIL_ACTIVITY_RECEIVE`) `400903`: Email Activity: Scan (`EMAIL_ACTIVITY_SCAN`) `400999`: Email Activity: Other (`EMAIL_ACTIVITY_OTHER`)
Unmapped Data	`unmapped`	Unmapped[]	The attributes that are not mapped to the event schema. The names and values of those attributes are specific to the event source.

Relationships

Outbound Relationships

Email Activity references the following objects and events in its attributes:

This page describes qdm-1.3.2+ocsf-1.3.0