Just to let you know: The certificate of the mailman site has expired

(This email is also a test for me, as I had some troubles locally where mail was blocked so I want to see that it still arrives. Please ignore).

Gerben Wierda (LinkedIn <https://www.linkedin.com/in/gerbenwierda>)
R&A Enterprise Architecture <https://ea.rna.nl/> (main site)
Book: Chess and the Art of Enterprise Architecture <https://ea.rna.nl/the-book/>
Book: Mastering ArchiMate <https://ea.rna.nl/the-book-edition-iii/>