Note : This setting is not configured in the Standard , Strict , or Built-in protection preset security policies. The Standard and Strict values indicate our recommended values in new Safe Attachments policies that you create. For more information, see Safe Links in Defender for Office Although there's no default Safe Links policy, the Built-in protection preset security policy provides Safe Links protection to all recipients users who aren't defined in custom Safe Links policies.
The global settings for Safe Links are set by the Built-in protection preset security policy, but not by the Standard or Strict preset security policies. Either way, admins can modify these global Safe Links settings at any time. To configure these settings, see Configure global settings for Safe Links in Defender for Office For more information, see Safe Links settings for Office apps.
As described earlier, there's no default Safe Links policy, but Safe Links protection is assigned to all recipients by the Built-in protection preset security policy. The Default in custom column refers to the default values in new Safe Links policies that you create. Before you turn on this setting, you need to follow the instructions in Customize the Microsoft theme for your organization to upload your company logo. Notification How would you like to notify your users? Use the default notification text Use the default notification text Use the default notification text Use the default notification text We have no specific recommendation for this setting.
You can select Use custom notification text CustomNotificationText to enter customized notification text to use.
You can also select Use Microsoft Translator for automatic localization UseTranslatedNotificationText to translate the custom notification text into the user's language. Related articles Are you looking for best practices for Exchange mail flow rules also known as transport rules?
See Best practices for configuring mail flow rules in Exchange Online. Admins and users can submit false positives good email marked as bad and false negatives bad email allowed to Microsoft for analysis. For more information, see Report messages and files to Microsoft. Don't forget the helpful directions in ' Protect Against Threats in Office '. Security baselines for Windows can be found here: Where can I get the security baselines?
Finally, a comparison between Microsoft Defender for Endpoint and Microsoft Intune security baselines is available in Compare the Microsoft Defender for Endpoint and the Windows Intune security baselines. Skip to main content. This browser is no longer supported. Download Microsoft Edge More info. Contents Exit focus mode. Is this page helpful?
Please rate your experience Yes No. Any additional feedback? Important The improved Microsoft Defender portal is now available.
Tip You can't change the recommended Standard and Strict settings in the Microsoft Defender portal. Note Outbound spam policies are not part of Standard or Strict preset security policies. Important The default anti-phishing policy in Microsoft Defender for Office provides spoof protection and mailbox intelligence for all recipients. Note The global settings for Safe Attachments are set by the Built-in protection preset security policy, but not by the Standard or Strict preset security policies.
Note As described earlier, there is no default Safe Attachments policy, but Safe Attachments protection is assigned to all recipients by the Built-in protection preset security policy. Note The global settings for Safe Links are set by the Built-in protection preset security policy, but not by the Standard or Strict preset security policies.
Note As described earlier, there's no default Safe Links policy, but Safe Links protection is assigned to all recipients by the Built-in protection preset security policy. Submit and view feedback for This product This page. View all page feedback. In this article. Most of these settings are part of ASF. We have no specific recommendation for this setting. This setting is part of ASF. Wherever you select Quarantine message , a Select quarantine policy box is available.
High confidence phishing detection action HighConfidencePhishAction. Retain spam in quarantine for this many days QuarantineRetentionPeriod. Adding domains to the allowed senders list is a very bad idea.
For more information, see Enable, disable, or test ASF settings. Restriction placed on users who reach the message limit ActionWhenThresholdReached. Restrict the user from sending mail until the following day BlockUserForToday.
Restrict the user from sending mail BlockUser. Automatic - System-controlled Automatic. The default alert policy named User restricted from sending email already sends email notifications to members of the TenantAdmins Global admins group when users are blocked due to exceeding the limits in policy.
This setting quarantines messages that contain executable attachments based on file type, regardless of the attachment content.
When you create a new anti-malware policy, a blank value means the default quarantine policy is used to define the historical capabilities for messages that were quarantined as malware AdminOnlyAccessPolicy. If malware is detected in an email attachment, the message is quarantined and can be released only by an admin.
Notify internal senders when messages are quarantined as malware EnableInternalSenderNotifications. Learn what's new. This topic is intended for admins. Microsoft's email safety roadmap involves an unmatched cross-product approach. EOP anti-spam and anti-phishing technology is applied across our email platforms to provide users with the latest anti-spam and anti-phishing tools and innovations throughout the network.
The goal for EOP is to offer a comprehensive and usable email service that helps detect and protect users from junk email, fraudulent email threats phishing , and malware. As email use has grown, so has email abuse. Unmonitored junk email can clog inboxes and networks, impact user satisfaction, and hamper the effectiveness of legitimate email communications. That's why Microsoft continues to invest in anti-spam technologies. Simply put, it starts by containing and filtering junk email.
The following anti-spam technologies are useful when you want to allow or block messages based on the message envelope for example, the sender's domain or the source IP address of the message. To help reduce junk email, EOP includes junk email protection that uses proprietary spam filtering technologies to identify and separate junk email from legitimate email.
EOP spam filtering learns from known spam and phishing threats and user feedback from our consumer platform, Outlook. Ongoing feedback from EOP users in the junk email classification program helps ensure that the EOP technologies are continually trained and improved.
Connection filtering : Identifies good and bad email source servers early in the inbound email connection via the IP Allow List, IP Block List, and the safe list a dynamic but non-editable list of trusted senders maintained by Microsoft. You configure these settings in the connection filter policy. Learn more at Configure connection filtering. Spam filtering content filtering : EOP uses the spam filtering verdicts Spam , High confidence spam , Bulk email , Phishing email and High confidence phishing email to classify messages.
You can configure the actions to take based on these verdicts, and you can configure what users are allowed to do to quarantined messages and whether user receive quarantine notifications by using quarantine policies. For more information, see Configure anti-spam policies in Microsoft By default, spam filtering is configured to send messages that were marked as spam to the recipient's Junk Email folder. However, in hybrid environments where EOP protects on-premises Exchange mailboxes, you need to configure two mail flow rules also known as transport rules in your on-premises Exchange organization to recognize the EOP spam headers that are added to messages.
Outbound spam filtering : EOP also checks to make sure that your users don't send spam, either in outbound message content or by exceeding outbound message limits.
For more information, see Configure outbound spam filtering in Microsoft It's possible that good messages can be identified as spam also known as false positives , or that spam can be delivered to the Inbox also known as false negatives. Office Message Encryption available as an add-on For more information, see Encryption in Office Feedback Submit and view feedback for.
Skip to main content. This browser is no longer supported. Download Microsoft Edge More info. Contents Exit focus mode. Is this page helpful? Please rate your experience Yes No.
Any additional feedback? Important The improved Microsoft Defender portal is now available. Note EOP is also available by itself to protect on-premises mailboxes and in hybrid environments to protect on-premises Exchange mailboxes. Submit and view feedback for This product This page. View all page feedback. In this article. Configure connection filtering. ZAP in Exchange Online. Create blocked sender lists in EOP. Create safe sender lists in EOP. Use Directory Based Edge Blocking to reject messages sent to invalid recipients.
User submissions policy. Find and release quarantined messages as a user in EOP Use quarantine notifications to release and report quarantined messages Quarantine policies.
Mail flow rules transport rules in Exchange Online Mail flow rule conditions and exceptions predicates in Exchange Online Mail flow rule actions in Exchange Online Manage mail flow rules in Exchange Online Mail flow rule procedures in Exchange Online.
Manage accepted domains in Exchange Online.
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