Tootfinder

Ca ii K Polar Network Index of the Sun - A Proxy for Historical Polar Magnetic Field: #SolarCycle activity: https://www.swri.org/newsroom/press-releases/using-100-year-old-data-help-predict-future-solar-cycle-activity

Blocking outbound port 25 is fine these days (for dynamically numbered networks, like residential ISPs, etc).
(But port 465 shouldn't be described as "Legacy SMTPS", since 2018 it has been the recommended port for secure email submission - RFC8314 section-3.3.)

Broadband ISP YouFibre UK Set to Block Email Internet Port 25 from Friday
Internet service provider YouFibre, which is one of the main retail outlets for Netomnia's growing national Fibre-to-the-Premises (FTTP) based broadband network

On 19 November, Christopher Ohge (IES) will deliver a talk on his new project, The Bow in the Cloud: A Digital Edition and Network Analysis of Antislavery Literature, at LETS: Loughborough Editing and Textual Scholarship research group. This hybrid even starts at 4.15pm in Brockington Building (B1.11) on the Loughborough University campus and on Teams. DM for online link.