[alpb]

Never heard of Exim, I'm just realizing what it is:

> Exim is an open-source Mail Transfer Agent (MTA) designed for Unix-like systems to receive, route, and deliver email.

what's the significance of this? do people use this in production systems?

[nubinetwork]

Exim is apparently the largest email server these days... it used to be postfix, but with most people using Gmail or 365, running your own email seems to be an afterthought. /shrug

[bcrl]

Postfix has a far better security track record. Exim has a steady stream of CVEs.

[hjilk]

I had the exact same reaction - never heard of this.

[burnt-resistor]

Then perhaps you haven't been around for very long. Have a look here before you put your feet in your mouth any further:

https://en.wikipedia.org/wiki/Comparison_of_mail_servers