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One-Liner Wednesday March 22, 2023

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We made it to Wednesday, so now we get a PowerShell One-Liner to make your life easier. Here’s the scenario, HR comes to you and says you need to forward Mark Smith email to John Ralph as soon as possible. Instead of opening up your 365 Exchange Admin portal and logging in, then finding Mark Smith, then finding the Forward option, then typing in John Ralph’s email and saving it.

All you need to do is your Connect to 365 Exchange Portal with Secrets” script, then run

Set-Mailbox msmith@email.com -FowardingAddress jralph@email.com

That is it! Seriously, that’s all you need to do. If your not doing anything else with 365 right away, I would disconnect the session.

One Parameter you can add is -DeliverToMailboxAndForward $true, which will save email sent to the original intended email, but still forward the email as well.

Hope this helps you out, and I’ve used this before in other scripts and created functions to add even more functionality.

PowerShell Help:
Microsoft Learn

One-Liner Wednesday January 18, 2023

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Do you use 365? Ever needed a quick list of all your users and their mailbox size? What about having it nicely formatted? Or do you only want to see a certain size mailbox? This quick one-liner is a good starting point.

Get-EXOMailbox -ResultSize Unlimited | Get-EXOMailboxStatistics | Select DisplayName, ItemCount, TotalItemSize | Sort-Object TotalItemSize -Descending | Export-Excel -Path C:\scripts\MailboxSizes.xlsx -AutoSize

What this does is uses the current way to get a 365 mailbox(Get-mailbox is deprecated), grabs all the mailboxes, selects only the Display name, amount of emails, and total size of their mailbox. It will then put the largest mailbox at the top and smallest at the bottom. After all of that, it exports it to an excel file that you can manipulate how you like. If you haven’t already used Doug Finke’s ImportExcel module, I’d recommend it to get creative with your formatting without ever opening Excel to format. You could add it so all mailboxes over a certain size are a certain color.

Hope this helps let me know if you expand on this even if its not a one liner, I’d love to see!

Module Monday November 28, 2022

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Hope all of my US friends had a good holiday! Now it’s Monday and we are back for another Module Monday. This is an important one, as it Is currently replacing a couple other modules as they are being depreciated. The 2 that are being depreciated are AzureAD and MSOnline if you didn’t know already. I’d check your scripts if you are still using them and convert them sooner than later.

So what is replacing these 2 modules? MS Graph, which doesn’t completely replace all the functionality as easily as we would like, but Microsoft is adding more features to it. This is how you will get license counts, Azure AD information, Teams, Exchange, Outlook, and any other 365 applications.

Also a great thing with Microsoft Graph is that it is cross-platform on PowerShell 7 and above so it doesn’t matter if you are using macOS, Linux, or Windows. You can still use it on Windows PowerShell 5.1 too.

PowerShell Gallery:

https://www.powershellgallery.com/packages/Microsoft.Graph/1.17.0

Microsoft Documentation:

https://learn.microsoft.com/en-us/powershell/microsoftgraph/overview?view=graph-powershell-1.0

One-Liner Wednesday October 26, 2022

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One Liner Wednesday Cyber Security Edition

Want to see the top Malware that hits your 365 Exchange? Try this one liner out

Get-MailTrafficSummaryReport -Category TopMalware -StartDate 08-01-2022 -EndDate 10-25-2022 | Select-Object C1,C2 | out-gridview

This will give you the different types of malware Microsoft has found and how many times it found in since August 1. Then it will display it in a grid view that you can filter. I normally export to Excel/CSV to keep the data as it goes away after 90 days. Bigger organizations I’d recommend pushing it into a database for longer term analytics.

Check out Microsoft Docs and my 365 GitHub Repository for more ideas!

Microsoft Documentation:
Get-MailtrafficSummaryReport

365 Exchange Security Dasboard(Very early stages)
365 Exchange Security Dashboard

My Microsoft 365 GitHub Repository:
Powershell365

Read-Only Friday October 21, 2022

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It’s Friday, so you know what that means!

I like todays, because it’s another one of those it’s easy, but we either forget to check or believe it’s working but it may not be.

What is it? Event logging and dashboards. I’ll admit the dashboard part isn’t easy, but the event logging is. And I’m not just talking about your scripts(which you should be adding event logging to them when possible), I’m talking about any of your infrastructure that you manage. Even if you have alerting on, how do you know the alerting is actually working? Maybe your script or application you are using to go through the logs has an update but you don’t see it since you haven’t checked it in a month thinking it just works?

It’s always better to be proactive than reactive. Also while going through the logs you may find something else you want to start alerting for. Maybe you adding a new feature to your firewall or you added a print server and you want to setup alerting for those?

Hope you take out some time today and go through your logs, and if you’ve done that, do you have dashboards and/or alerting in place? If so, check those as well, and see if there is anyway you could improve it.

What scripts/modules/applications do you use to manage your event logs and/or create dashboards with?