adding available fields for this data source

Author: patel-bhavin

data_sources/office_365_reporting_message_trace.yml

@@ -12,5 +12,62 @@ supported_TA:
   url: https://splunkbase.splunk.com/app/4055
   version: 4.8.0
 fields:
+- FromIP
+- Index
+- MessageId
+- MessageTraceId
+- Organization
+- Received
+- RecipientAddress
+- SenderAddress
+- Size
+- Status
+- Subject
+- ToIP
+- _bkt
+- _cd
+- _eventtype_color
+- _indextime
+- _raw
+- _serial
+- _si
+- _sourcetype
+- _subsecond
 - _time
+- action
+- date_hour
+- date_mday
+- date_minute
+- date_month
+- date_second
+- date_wday
+- date_year
+- date_zone
+- dest
+- eventtype
+- host
+- index
+- internal_message_id
+- linecount
+- message_id
+- punct
+- recipient
+- recipient_count
+- recipient_domain
+- size
+- source
+- sourcetype
+- splunk_server
+- splunk_server_group
+- src
+- src_user
+- src_user_domain
+- status_code
+- subject
+- tag
+- tag::action
+- tag::eventtype
+- timeendpos
+- timestartpos
+- vendor_product
 example_log: '{"Organization": "attackrange.onmicrosoft.com", "MessageId": "<BY5PR08MB62304A5BB7F9EE555B4CEA26DC1C2@BY5PR08MB6230.namprd08.prod.outlook.com>", "Received": "2025-01-16T21:06:46.832439", "SenderAddress": "victim_2@attack_range.lan", "RecipientAddress": "[email protected]", "Subject": "Accounts and Passwords", "Status": "Delivered", "ToIP": "2607:f8b0:400e:c0d::1a", "FromIP": "189.135.168.197", "Size": 33584, "MessageTraceId": "3567c8ef-cc17-4a3f-d166-08dd3161e4fc", "Index": 3035}'