If you follow Lightmeter on Mastodon or Twitter or met us at FOSDEM or Telegram then you know that we’ve been scanning the world’s servers to map the evolving state of email. A dedicated page with many statistics and the ability to explore the data yourself is under construction and coming soon.
Some of you however have asked for publication of preliminary results, so here’s a snippet of what’s to come.
To start with here is the breakdown of different email server software used worldwide.
|Mail Transfer Agent||Number of domains||Share (%)|
|cbdev cmail smtpd||385,058||10|
|Microsoft Exchange smtpd||152,091||4|
|Access Remote PC smtpd||41,722||1|
Other findings resulted from this research, including:
Those will be published in the coming weeks, including an explanation of the methodology we used and how to run your own scans. Check back soon or get the Lightmeter newsletter to receive the stats in your inbox ?