Damn CNAME
Today on "Things I learned", I get reacquainted with CNAMEs and how they, when they want to, will 'eff up your DNS records. A client engaged me for a "quick" domain warming for a rebranding. After review, this wasn't really a warming. The volume was too low. For me, the most important thing was making sure they were technically set up to be successful: authentication, working DNS, working mailboxes, etc. etc. etc. Yes, they had to be mindful of alerting their customers of their new domain in their email program, properly routing their current site to the new site and educating customers there as well. But most of their customers were already aware of the rebranding through direct 1:1 communications. The task was simple, get the domain setup, make sure it sits for an appropriate amount of time (minimum 30 days) without email activity, set up the website, get the right DNS records added, test, and make sure it all works. I started with their corporate mail and...