External Sharing in SharePoint and OneDrive is changing: What You Need to Know

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In an ongoing effort to create a more secure environment by default, Microsoft is introducing an important security update that will affect how external users access content shared through SharePoint and OneDrive. Starting July 1, 2025, any links shared with external users before your organization enabled Microsoft Entra B2B integration will no longer work. This change applies to all organizations that have already enabled or will enable SharePoint and OneDrive integration with Microsoft Entra B2B (Most organizations I have looked into so far). External users trying to use old links will see an error message saying the organization has updated its guest access settings. To regain access, the content must be reshared. Highlights of how the change affects organizations who have enabled B2B: All external sharing will require guest registration. External users must be added as guests in your Microsoft Entra directory. Access will be managed through Microsoft Entra B2B Invitation Manager. T...

Backup Skype for Business script is coming soon

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The release of Skype for Business Server for On-Premise is just around the corner, and as a preparation for the release, I am going through my Lync 2013 backup script and verifying the commands and version checking for SfB.

As I am upgrading the script for SfB, I am also introducing a couple of new features. Here is a sneak peak of what to expect in the new version.

Select you own password for Private Key protection
When the script is run, the previous version set the password of all certs to "secret". This is now a parameter which you may (and should) change. Simply run the script with the -CertPass option


Send an Email report after the script has been run
Although the script can be run manually, I usually configure a scheduled task to do it for me every (day, week, month or what you prefer). I have now added a function which will send you an email with a brief transcript of the backup. This requires an available SMTP server, and valid to/from addresses.

Running the script with the -SendEmailOnComplete switch trigges the required mandatory parameters: EmailFrom, EmailTo and SMTPServer


This will send an email looking like this to the desired mailbox


The attached log file should look like something like this. And I would like to highlight:
1) A notification regarding Log backup
2) A notification if there are Cs-Certificates in the store where priv-key is not exportable



A shortcut to more information
I have included a switch which should launch your preferred browser and take you to my blog, and display the posts with the Backup-SfB tag. Use the -OnlineInfo to invoke

I have a working beta version of the Backup-SfB.ps1 in our own deployment, and awaiting some feedback from other beta testers. So please let me know what you think of these new features, and if there are others you would like to see in an upcoming release. The release will be announced at Ignite ;)