check before: 2022-11-29
Product:
Defender, Exchange, Microsoft 365 Defender
Platform:
Online, World tenant
Status:
Change type:
Admin impact, Feature update, Updated message
Links:
Details:
Updated February 7, 2023: We have updated the rollout timeline below. Thank you for your patience.
Exchange Online Protection (EOP) assigns a bulk complaint level (BCL) to inbound messages from bulk mailers. A higher BCL indicates a bulk message is less likely to be wanted by the user.
We are rolling out several changes in how we allocate BCL scores to messages to provide more accurate scoring and coverage for bulk messages. We are also updating the threshold for the strict policy from 4 to 5 to better align with the new scoring. In addition, customers using Microsoft Defender for Office P2 or customers with E5 licenses will be able to view the BCL score for a message in advanced hunting.
[When this will happen:]
We will begin rolling out in mid-November and expect to complete rollout by late April (previously January).
Change Category:
XXXXXXX ...
Scope:
XXXXXXX ...
Release Phase:
Created:
2022-11-15
updated:
2022-11-15
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changes*
| Date | Property | old | new |
| 2023-02-08 | MC Messages | Exchange Online Protection (EOP) assigns a bulk complaint level (BCL) to inbound messages from bulk mailers. A higher BCL indicates a bulk message is less likely to be wanted by the user.
We are rolling out several changes in how we allocate BCL scores to messages to provide more accurate scoring and coverage for bulk messages. We are also updating the threshold for the strict policy from 4 to 5 to better align with the new scoring. In addition, customers using Microsoft Defender for Office P2 or customers with E5 licenses will be able to view the BCL score for a message in advanced hunting. [When this will happen:] We will begin rolling out in mid-November and expect to complete rollout by late January 2023. | Updated February 7, 2023: We have updated the rollout timeline below. Thank you for your patience.
Exchange Online Protection (EOP) assigns a bulk complaint level (BCL) to inbound messages from bulk mailers. A higher BCL indicates a bulk message is less likely to be wanted by the user. We are rolling out several changes in how we allocate BCL scores to messages to provide more accurate scoring and coverage for bulk messages. We are also updating the threshold for the strict policy from 4 to 5 to better align with the new scoring. In addition, customers using Microsoft Defender for Office P2 or customers with E5 licenses will be able to view the BCL score for a message in advanced hunting. [When this will happen:] We will begin rolling out in mid-November and expect to complete rollout by late April (previously January). |
| 2023-02-08 | MC Title | Exchange Online Protection: Bulk Filter (BCL) Improvements | (Updated) Exchange Online Protection: Bulk Filter (BCL) Improvements |
| 2023-02-08 | MC Last Updated | 11/15/2022 01:26:57 | 2023-02-07T21:57:21Z |
| 2023-02-08 | MC MessageTagNames | Feature update, Admin impact | Updated message, Feature update, Admin impact |
| 2023-02-08 | MC End Time | 02/28/2023 09:00:00 | 2023-05-29T10:00:00Z |
*starting April 2022
Last updated 11 months ago
