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- Blocking bulk mail with transport rules.
- Blocking IP addresses with a connection filter.
- This article describes the steps required by an administrator to adjust your Office 365 anti-spam filter and help prevent spam from being delivered to user's inboxes. In this context, a false negative refers to email spam or junk messages that are getting sent to a user inbox. The Office 365 spam filter will become better able to block email spam and prevent false negative messages if you use the options listed here.
This helps to prevent the false negative issue, where email spam is allowed through to a user inbox.Īn administrator can use several Office 365 spam filter settings to help prevent email spam from being sent to a user inbox.
- KB0011009 - Blocking unwanted emails (for Outlook users)Īn Exchange Online or Exchange Online Protection (EOP) administrator can help to ensure spam and junk messages are blocked by adjusting your Office 365 spam filter.
- KB0011007 - Blocking unwanted emails (for Outlook on the web users),.
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Related articles, intended for general Office 365 users, who don't have administrator permissions, are: This article is intended for Office 365 administrators. Blocking email spam with the Office 365 spam filter (for administrators)