How to Wipe a Hard Drive in Windows 11 | Cmd Tools
Secure wipe a whole disk using built-in Windows 11 tools ... Read More
From time to time performing maintenance on a DAG member server might be necessary. For example, cumulative updates for Exchange are released quarterly, installing them requires stopping services and rebooting the server. During the process we want the mail flow, ... Read More
The question has been asked many times already: is it possible to run a hypervisor INSIDE a Proxmox machine as a VM? The answer is yes. It is called nested virtualization and in this article, we will see how it ... Read More
As a rule of thumb, it's a good practice to place the Exchange databases in a dedicated location. By default, in Exchange 2013, 2016 and 2019 both the EDB file (the database itself) and the log files are created under:C:\Program ... Read More
In this short guide we have create a free Let's Encrypt wildcard certificate. Before you Begin We'll need a fresh installation of Ubuntu or Debian linux. The box doesn't need to b e publicly accessible as we will use DNS ... Read More
It this article we'll create basic, single site Exchange 2019 DAG (Database Availability Group). We already installed two mailbox servers with the same specifications (detailed here). Each of them has a single database configured already, MAIL has DB01 and MAIL2 ... Read More
Export a CSV list of all the mailboxes with names and sizes in a fully numeric format, so they can be ordered, summed, etc. The script works on Office365 and on-prem servers as well ... Read More
Do you want to automate distribution group creation, making your job easier? With this script you'll be able to mass-create distribution groups. It takes a simple text file as an input that contains a list of delivery group names, and ... Read More
Office365 is increasingly popular among businesses as a managed email service with a plethora of features and competitive pricing. The best and most efficient way to administer your Exchange Online tenant is via Exchange PowerShell. It comes with no surprise ... Read More
In certain scenarios we might need to forward a full VLAN trunk to a VM. In this article we go through a process of virtualizing a switch in ProxMox to achieve this easily. Before You Begin We assume the trunk ... Read More
Have you ever wondered while typing the same long PowerShell command again and again, that there must be an abbreviation for at least a few of them? Here you go! ... Read More
Every day we need to log into hundreds of portals, as it is important for security, there must be a way to script it, automate logins without putting our actual passwords in scripts in plain text, right? Luckily this is ... Read More
In our previous article we discussed enforced TLS with Exchange. More precisely with on-premises Exchange servers. We established that Exchange uses opportunistic TLS, meaning it prefers encryption but it is not enforced if the other party only supports plain SMTP ... Read More
Most of the time administrators manage distribution group memberships. But it is absolutely possible for selected users to add/remove group members as needed, using simply their Outlook client. Before You Begin - Enabling MyDistributionGroupManagement
In our example a user called ... Read More
In our example a user called ... Read More
This guide is for on-premises Exchange deployments. If you are interested in enforced TLS on Office365 tenants, please click HERE Opportunistic Exchange - like most modern email systems - has the facility to transfer email messages encrypted. It is to ... Read More
UNIX type systems use the octal file permission model, that is limited in terms of setting access permissions for specific users and groups. By default there are only three attributes to be set on files and directories: for the owner, ... Read More
Exchange - like most of the other email systems - limits the maximum size of incoming and outgoing messages. There are three layers where these limits can be set: system-wide, on the send- and receive connectors and on individual mailboxes ... Read More
