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Microsoft 365 cross-tenant migration

12 Comments / PowerShell, Ramblings / By simon.burbery

Hello! Long time no… 🍻😊🍻 I thought I would share some PowerShell I used during a recent cross-tenant migration. Firstly, the Microsoft documentation is really good and got the journey off to a good start: https://docs.microsoft.com/en-us/microsoft-365/enterprise/cross-tenant-mailbox-migration?view=o365-worldwide PLEASE NOTE: Following is some fairly raw PowerShell. You can’t just press Go! You’ll need to understand and update …

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Is your Hybrid Exchange Server SAFE or unknowingly EXPOSED?

Leave a Comment / Ramblings / By simon.burbery

Hello and happy 2022! 🥳 I hope the year has started off as well as it possibly can for you (aside from the holiday ending a bit too early of course!)… 🍺😭 …right back to work! Now, is your Exchange environment safe!!?? Really? Is it? I love this utility called ‘SMTP Diag Tool’. It’s great …

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Remove proxy address for specific domain from Exchange Distribution groups

Leave a Comment / PowerShell / By simon.burbery

This script can be run after connecting to Exchange Online or on-premises environment. Replace “porkchops.com” with the suffix you want to remove 👍 Thanks to me mate Sailesh who loooves his porkchops!! 🤣🤣

Exchange Online – set default Retention Policy if null

Leave a Comment / PowerShell / By simon.burbery

# EDIT # I have updated this script due to an issue where multiple mailboxes are matched due to similar names, this line below with $mailboxes variable piped to the Set command uses Display Name for Identity which may not be unique. Script is updated to loop through the mailboxes using UPN for the Set …

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Azure Runbook – enable Exchange Online Litigation Hold!!

4 Comments / PowerShell / By simon.burbery

This script will connect to Exchange Online and enable litigation hold for all ‘enabled’ users (if it is currently disabled). Errors due to not having the appropriate license are ignored. Litigation hold can be enabled for users licensed with Business Premium, EOL Plan 2 or the Mailbox Archive add-on. You can schedule to run nightly …

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