One of the problems I've noticed recently is that there are constant attacks against the email server.
These attacks are
After determining these attacks, I reviewed the email server architecture, and checked for ways to beef up the email server.
Eventually, I determined that the best way to protect against these attacks is to develop new extensions for the email server.
These extensions protect the email server by rejecting IPs that have connected too frequently, and placing these IPs on a blacklist.
The email server is currently being monitored for the effectiveness of these extensions.
In 2017, with the release of Delphi 10.2 Tokyo, Embarcadero introduced a specialized implementation of the Observer pattern into the System.Classes unit. While it has been in the wild for 9 years, it remains a "hidden" architecture for many, primarily because it serves as the invisible engine behind LiveBindings. Other than live bindings, you can also use the Observer pattern as a way to update component settings to the Windows registry, an .ini file, or persist it elsewhere.
System.Classes