When I switched over mail infrastructure earlier this week, I might have been under a few mistaken impressions — in hindsight, one might qualify at least some of them as embarrassing. Firstly, MX records never work the way you suspect — in part because you expect them to work as specified. Forget that. In a… Continue reading Kolab Now MX Migration Sorted
Close your eyes and imagine a world in which a user visits a website. This website may be encrypted, and when it is, the SSL certificate used must somehow be validated. Traditionally, SSL certificates are issued by third parties that have their certificate authorities included in browsers and operating system’s bundles. This way, whichever SSL… Continue reading HPKP or DANE?