Guys,
Here's a PowerShell script that gathers a baseline configuration for Exchange Online tenants. This script connects to Exchange Online and retrieves various settings, such as organization configuration, mailbox policies, transport rules, and more. You can use this as a starting point and customize it based on the specific configurations you're looking to baseline.
There are two versions on messaging - Exchange Online Plan 1 provides a 50 GB mailbox, supports messages up to 150 MB, and includes Outlook on the web for a premium browser-based experience. Exchange Online Plan 2 includes everything in Plan 1, plus a 100 GB mailbox, built-in data loss prevention (DLP), and cloud voicemail services with call answering and automated attendant
Connect to Exchange Online
Connect-ExchangeOnline -UserPrincipalName admin@yourte nant.onmicrosoft.com
Retrieve Organization Configuration
$orgConfig = Get-OrganizationConfig
$orgConfig | Format-List
Retrieve Accepted Domains
$acceptedDomains = Get-AcceptedDomain
$acceptedDomains | Format-Table Name, DomainType
Retrieve Mailbox Policies
$mailboxPolicies = Get-OwaMailboxPolicy
$mailboxPolicies | Format-Table Name, AllowFileAttachments, DefaultTheme
Retrieve Transport Rules
$transportRules = Get-TransportRule
$transportRules | Format-Table Name, Enabled, Mode
Retrieve Mobile Device Policies
$mobileDevicePolicies = Get-MobileDeviceMailboxPolicy
$mobileDevicePolicies | Format-Table Name, AllowBluetooth, RequireEncryption
Retrieve Mail Flow Rules
$mailFlowRules = Get-MailFlowRule
$mailFlowRules | Format-Table Name, Enabled
Retrieve Exchange Online Protection (EOP) Settings
$antispamSettings = Get-HostedContentFilterPolicy
$antispamSettings | Format-Table Name, SpamAction, QuarantineRetentionPeriod
Retrieve Mailbox Quotas
$mailboxQuotas = Get-Mailbox | Select-Object DisplayName, ProhibitSendQuota, ProhibitSendReceiveQuota, IssueWarningQuota
$mailboxQuotas | Format-Table DisplayName, ProhibitSendQuota, ProhibitSendReceiveQuota, IssueWarningQuota
Disconnect from Exchange Online
Disconnect-ExchangeOnline -Confirm:$false
Save this script to the ps1 file and run it save report in txt or csv file. Make sure to replace admin@your tenant.onmicrosoft.com with your actual administrator account. This script will provide a snapshot of your tenant’s configuration, which can be useful for auditing, troubleshooting, or establishing a baseline!
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