Ensure MailTips are enabled for end users

MediumLevel 1Manual reviewm365

Description

MailTips are informative messages displayed to users while they're composing a message. While a new message is open and being composed, Exchange analyzes the message (including recipients). If a potential problem is detected, the user is notified with a MailTip prior to sending the message. Using the information in the MailTip, the user can adjust the message to avoid undesirable situations or non-delivery reports (also known as NDRs or bounce messages). Setting up MailTips gives a visual aid to users when they send emails to large groups of recipients or send emails to recipients not within the tenant.

How it is checked

Audit method: Manual review

This recommendation cannot be checked automatically. A scan lists it with these instructions when you pass --include-manual.

To audit using PowerShell: 1. Connect to Exchange Online using Connect-ExchangeOnline. 2. Run the following PowerShell command: Get-OrganizationConfig | fl MailTips* 3. Verify the values for MailTipsAllTipsEnabled, MailTipsExternalRecipientsTipsEnabled, and MailTipsGroupMetricsEnabled are set to True and MailTipsLargeAudienceThreshold is set to an acceptable value; 25 is the default value.

How it is fixed

Fix method: Guidance or infrastructure patch

To remediate using PowerShell: 1. Connect to Exchange Online using Connect-ExchangeOnline. 2. Run the following PowerShell command: $TipsParams = @{ MailTipsAllTipsEnabled = $true MailTipsExternalRecipientsTipsEnabled = $true MailTipsGroupMetricsEnabled = $true MailTipsLargeAudienceThreshold = '25' } Set-OrganizationConfig @TipsParams

Properties

Operating systems: Any
Tags: m365saas
Reference: CIS Microsoft 365 Foundations Benchmark v7.0.0 - 6.5.2 Ensure MailTips are enabled for end users