PowerShell-ExchangeOnline

This repository contains scripts and little helpers in the daily work or migration. These scripts are not always in 'prettiest' PowerShell language, but they are more intended to be little helpers and problem solvers. Before using any, carefully review and adjust the scripts to your need. USE AT YOUR OWN RISK!

Add-MailboxFullAccessPermissionsFromCSV.ps1

Use this if you have 1 target mailbox (e.g. Shared Mailbox) and need to add a lot of people with FullAccess permissions. Provide the people with a CSV in the column 'User'.

.\Add-MailboxFullAccessPermissionsFromCSV.ps1 -CSV "C:\script\myUsers.csv" -mbx "mySharedMailbox@contoso.com"

Fill-ExchangeMailbox.ps1

You need to let your mailbox grow for a certain amount of data within a short time? Specify a folder, the intended size, sender and recipient and let PowerShell send emails from your source mailbox to the recipient until the size is reached. Be careful not to blow up the recipients mailbox ;)

.\Fill-ExchangeMailbox.ps1 -Recipient "target@contoso.com" -SizeInMB 50 -FilesFolder "C:\myStuff" -O365Sender "myMailbox@contoso.com"

Generate-MailboxStatistics.ps1

This script reads mailbox sizes and item count for all mailboxes in your organization and exports this data to C:\temp\MailboxReport.csv

Resolve-MailboxPermissionsAndSetAutomapping.ps1

Exchange Online can grant FullAccess permissions for groups, but this doesn't count for Automapping. So, if you have to switch to direct permissions, provide the targetmailbox and group name, the script will add all group members directly to FullAccess permissions

.\Resolve-MailboxPermissionsAndSetAutomapping.ps1 -MBX 'targetmailbox@contoso.com' -group 'sales@contoso.com'

Run-AuditLogSearch.ps1

This script is not developed by me, but sometimes it is good to have it easy and fast accessible, so I've took the sourcedode from https://docs.microsoft.com/en-us/office365/troubleshoot/audit-logs/mailbox-audit-logs, did some adjustments and uploaded it here.

# get Audit logs from the last 5 days
.\Run-AuditLogSearch.ps1 -Mailbox <MAILBOX TO SEARCH> -StartDate ((Get-Date).AddDays(-5)).Date -EndDate (get-date).Date

Set-PersonalBookingsForIndividuals.ps1

This script contains templates to enable or disable personal Bookings for individuals inside the organization. The templates work with a CSV template to configure personal Bookings on a per-user basis.

.\Set-PersonalBookingsForIndividuals.ps1

Set-PersonalBookingsForOrganization.ps1

This script contains templates to enable or disable personal Bookings for the whole organization.

.\Set-PersonalBookingsForOrganization.ps1

Set-PersonalBookingsCalendarSharing.ps1

This script sets the necessary calendar sharing policy for personal Bookings in Exchange Online.

.\Set-PersonalBookingsCalendarSharing.ps1