How to reject Emails in Office 365 they fail DMARC
EASYDMARC had an interesting blog post about DMARC handling with Microsoft 365. DMARC and Microsoft : What is Happening?https://easydmarc.com/blog/dmarc-and-microsoft/ You…
Set up DomainKeys Identified Mail (DKIM) on Exchange on-premise
Out of the box on-premise Exchange Server doesn’t support DKIM signing. To deploy DKIM for your on-premises Exchange Servers you…
Set up Exchange on-premise to relay outbound Emails to the Internet via Exchange Online Protection (EOP)
If you had an Exchange Hybrid configuration, you can route also outbound email messages from your on-premise mailboxes through Exchange…
Enable TLS for Postfix on Ubuntu
Regarding the Postfix documentation, TLS support is turned off by default, so you can start using Postfix as soon as…
Remote Desktop Services (RDS) – Published RDP Icon is gone after publishing further Remote Apps later
It seems that there is a bug in Remote Desktop Services (RDS) regarding the published Remote Desktop Connection (RDP) app….
Code Signing in Visual Studio
In this post I want to show how you can sign your Visual Studio application by using a X.509 code…
Prevent Members from Domain Users Group to Logon by default to any Domain joined Computers
In this post I want to show how you can prevent that domain users can logon by default to each…
pfSense 2.6.0 Upgrade results on Hyper-VMs in very slow network speed
Last weekend I upgraded our pfSense 2.5.2-RELEASE Hyper-V VM appliances to the new pfSense version 2.6.0-RELEASE. One VM was configured…
Installing or Updating the latest Version of the AWS CLI
To install the AWS Command Line Interface (AWS CLI) for Windows you have to download the latest MSI installer below. Download and…
MySQL – Access denied for user ‘root’@’localhost’
In case you want to connect to your local MySQL Database by using the root user and you encounter one…
