Yearly Archives: 2019

PowerShell – script to reset user password in AAD and AD then force sign out from Office 365 services

The only purpose of this script is to act as fast as possible when dealing with a successful phishing attack where one of your users got compromised. You can perform all the steps below one by one using UI but it takes more time which must not be wasted in such a case. So, here are actions the script does: Creates a new random password (you can play with how your temp password should look like). Your user will be forced to change it. Resets a password in the cloud / Office 365. Optionally resets a password in your on-premise AD (if your accounts are synced with Active Directory) Terminates all active Office 365 sessions (Invalidates the refresh tokens issued to applications for a user per Microsoft). In order to reset passwords in AD the script must “Run As” an account that can edit AD. If you are remote, you…

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PowerShell – script to show all mailbox rules and disable selected ones

Ever needed to quickly find and disable mail rules in user mailboxes? Look no further as the script below does all of it. It’s a convenience by itself to not go into Exchange Admin Portal, but there might be cases where your user gets hacked, some bad person creates a rule or two. Then you need to disable those quickly. So this script does the following to a specified email: lists all mailbox rules and shows their most important info - its actions, description, and status; then you can select and disable any rule by typing its number until (if desired) all rules are disabled. Don’t forget to replace @contoso.com with your own domain. #---------------------------------------[Functions]--------------------------------------------------- Function List-Rules { param ( [Parameter(Mandatory=$True)]$email ) Begin{} Process{ $collection = @() $i = 0 $rules = Get-InboxRule -Mailbox $email ForEach ($rule in $rules) { $outObject = "" | Select Number,Status,"Rule Name","Applies to emails From","Delete…

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SharePoint Column Formatting – hide Title column and use JSON to show View and Edit buttons in any column

It’s not always convenient to use a default Title column that comes standard with a newly created SharePoint list. PowerApps form can take care of it and add some logic to it but it is still a Single line of text column. To make it even more complicated to remove, that Title column ties to a "view/edit an item" link. If you still want to get rid of it and not lose any functionality you can use a simple JSON code below: { "elmType": "a", "txtContent": "@currentField", "attributes": { "href": "='https://contoso.sharepoint.com/sites/dev/Lists/TestList/DispForm.aspx?ID='+[$ID]" }, "style": { "padding": "10px", "font-weight": "bold" } } However, this method has quite a few downsides: when closing a form, it redirects to a Default view (it is possible to specify which view to go but that might be a lot of hard-coding depending on how many views you have); the link is hard-coded; does not seem to open "modern…

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PowerShell – auxiliary script to populate CustomAttribute10 with a Purged Items FolderID

Originally this script ( New-ComplianceSearch script ) would search through Purged Items. That was the downside of it comparing to a "classic" Search-Mailbox you can find here ( Search-Mailbox script ). So imagine you run the script the 1st time, find target messages, and then delete them - the found results make sense. However, should you run the script the 2nd time with the same search criteria, it would find those already purged messages again. That creates some confusion. So it would be great to exclude Purged Items folders from the search. Now, it is possible to do so on the fly ( https://docs.microsoft.com/en-us/microsoft-365/compliance/use-content-search-for-targeted-collections ) but it is very time consuming and takes about 1-3 seconds for each mailbox which stacks up pretty fast. So I came up with a script to take care of this issue by storing a Purged Items FolderID in a CustomAttribute10 of each mailbox. So…

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PowerShell – New-ComplianceSearch script to go through all mailboxes, find a target message, and remove it

Here is another more advanced script that searches for messages of interest, then optionally exports and purges them. So, what makes this script more advanced? Unlike the other script that uses Search-Mailbox ( https://365basics.com/powershell-search-mailbox-script-to-go-through-all-mailboxes-find-a-target-message-and-remove-it/ ) this script below is based on New-ComplianceSearch cmdlet: Pros: Super fast, multi-threaded, takes about 1-2 minutes on average to complete the whole task. As Microsoft is trying to depreciate Search-Mailbox, they put more effort into New-ComplianceSearch, so we can expect new functionality to come in the future. Can create an export file that can be downloaded and investigated. Cons: Always searches through all folders including Purged Items which might create some confusion when showing results (if running the same search again) - see UPDATE 9/30/2019 Cannot copy messages to another mailbox for you to investigate. Of course there are quite a few scripts out there that use New-ComplianceSearch, everyone has their own approach. So let…

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PowerShell – Search-Mailbox script to go through all mailboxes, find a target message, and remove it

When looking at the title of this post, one might notice I used a target word, and it is on purpose. This script below is useful when trying to remove all types of messages from users' mailboxes whether it's a spam, scam, virus or a an important message that needs to be "recalled". This script is based on Search-Mailbox cmdlet, works well but it has its own pros and cons, more on some of them below. Later I will have another post showing a different and more advanced script to do the same and even better. So stay tuned. Pros: Doesn't search through Purged Items (a bit more about the 3rd layer of Trash is here - https://365basics.com/script-to-search-through-recoverable-and-purged-items-and-restore-those/ ). Can copy messages to another mailbox (IT Help in that example). Cons: Per Microsoft Search-Mailbox will be depreciated, we don't know when it will happen though. Slow (if a target message…

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Microsoft Flow – archive SharePoint List data into a single Excel file

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This post is about a quite simple task to achieve - archiving SharePoint List data into a single Excel file that is stored in a Document Library. I think it is important to go through this process to show the basics and have it as a prerequisite for a more complicated process - archiving data into multiple excel files. There are several reasons why one would archive data into Excel: excel file is easy to move or share; it is very fast to work with (no paging, no 5000 item limit view threshold). Let's create a SharePoint List with different types of columns (single line text, date, number, choice): Then we add a few test items: After that we create a Document Library and put an Excel file into it: That Excel file should have a table in it and the same columns as our SharePoint List. The formatting of…

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PowerShell – change the storage space for a specific user’s OneDrive

As an admin you can easily make an adjustment of a OneDrive storage limit for all users through a OneDrive admin center. If you need to do the same for a specific user, here is a Microsoft article that describes that - https://docs.microsoft.com/en-us/onedrive/change-user-storage Truth is, it only takes a single line of code to make an adjustment; however, my script below takes care of most little things, requirements, and inconveniences: you only need an email address of a user; the minimum size of allocated space is 1 GB; the maximum size is 5 TB. $email = Read-Host "Please provide an email address of the user" $convertedemail = $email -replace "\.","_" -replace "@","_" $partofthelink = "-my.sharepoint.com/personal/" + $convertedemail $onedriveurl = Get-SPOSite -IncludePersonalSite $true -Limit all -Filter "Url -like $partofthelink" $onedriveurl Do { Try { $num = $true [int]$sizegb = Read-Host "Please specify the size of OneDrive storage space to be set…

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PowerApps – enhance Combo Box search functionality

Even out of the box PowerApps is a great tool that provides lots of functionality. Way more than InfoPath could. However, most of the time with very few adjustments it is possible to achieve even more. A great example would be a Combo Box and its search ability. Let's create a SharePoint list with a Choice column and these values: It doesn't really have to be a Choice column, you might as well use a Lookup column. When a PowerApps form is created, the studio creates a Data Card and a Combo Box control associated with that Choice field. Let's see how the search in that Combo Box works and why it is limited in its current state. Note how it finds BK but doesn't find Black. The search has a StartsWith behavior. What if it is necessary to search for a word regardless of its position. Well, that's very easy…

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SharePoint – enable or disable Share option per each library within a site

This post is about how to enable or disable Share option for each library within a SharePoint subsite. There are different suggestions that worked for some but didn't for the others in this stackexchange topic - https://sharepoint.stackexchange.com/questions/208090/how-do-i-disable-get-a-link-share I found a way to control it by adjusting Access Requests Settings and Permission levels. Unfortunately it's almost impossible to find any documentation on what each Permission option does. Let's see how it all works together. Microsoft is known to change things down the road, so the settings that work today might not in the future. Please test everything before moving forward in your production environment. So here is a test subsite with two document libraries: The first requirement is Allow members to share the site and individual files and folders must be checked: Second, on your main site within a site collection you need to create a copy of the Contribute permission level, name it Contribute…

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