Office 365 E-Mail forward attack via inboxrules in user mailboxes

NOTE: you can also use the code on exchange onpremises 2010 and aboveA customer called me two weeks ago, that he got the feedback from his customer that he is sending some strange mails. So I had a look at the O365 security and clompliance center. After searching some reports I found out, that every …

Fill AD groups with content from txt files (users can manage AD groups without AD console)

Some time ago a customer asked me to create a small powershell script which can read users from text files and add them to special Active Directory groups once a day via scheduled task. The goal is letting some “admin” users change AD groups via text file by adding the SamAccountName to these text files, …

Planet PowerShell: Featured Community Blog

Thank you very much Planet Powershell for picking up my blog into your great community. Now I can officially call my blog “Planet PowerShell Featured Community Blog” . I hope my content helps people all around the world to solve some problems. https://www.planetpowershell.com/authors I’s an honor to see my blog next to the great people …

Installing Send-RDMessage permanently on RDServers

You may read my article handeling remote desktop messaging for all connected users. So here is my first module for Remotedesktop Messaging. https://blog.it-koehler.com/en/Archive/2511If you liked it you may also want to have this cmdlet permanently on your rdserver for notifying your users every time there is a problem or maintenance. I’ve converted the PS Script …

Look Behind-the-scenes blog.it-koehler.com

Here some numbers behind blog.it-koehler.com. In the diagram you can see the visits of this blog. Thank you all for visiting and also writing some comments. I’ll keep working on this blog. I use “Matomo” to generate my web statistics. https://matomo.org/