Every now and then IIS application pools lock up and needs to be killed. You can add the field PID in Task Manager and then use cmd tools to find which one of the IIS Worker Process is the right one and kill it. I created a simple script that lists all the IIS Application Pools by name, select the one you need to kill and the script kills it. The script is available on my Github and is named IISAppPoolKiller.ps1. Please comment below what you have been using this for!
Setting up Microsoft Internet Information Services (IIS) SMTP service is pretty straight forward for simple implementations. It hasn't really keept up with time and I'm pretty sure not to many people use it anymore. Working with an older implementation in a system that used distributed SMTP on each and every IIS server I realized we needed to centralize it so we could secure it properly. This included re configuring an old IIS SMTP server and then add a bunch of aliases to make sure the server accepted all the incoming e-mails.