Funny how there are so many of us with the exact same story in regards to our dyndns accounts. There’s no way this can be a coincidence.
I too had my long standing (years) free dyndns account deleted. I was using the ’homelinux.net’ domain which now just happens to be a ‘premium’ domain only available to paying members. I received the change warning email. At that time I checked my router (flashed with DD-WRT) and it was logging into my dyndns account and making the required changes on a regular basis. According to the change email I had nothing to worry about. A few months later my domain no longer works and my account is completely gone. Sitting in my inbox was the ‘account deleted’ email. This was the first email I had received from dyndns since the change email (mail filters put all mail from dyndns in its own box).
Dyndns, if you couldn’t keep providing the free service, that’s fine. Just let us know and give us some warning so we don’t discovers the hard way that our setups aren’t suddenly broken. This was a poor way to handle the situation. Who’s to say you wouldn’t pull this same kind of stunt with paying customers further on down the road.
I’ve switched to no-ip as well (servebeer.com domain FTW!).
Thanks for the DNS service dyndns. It was fun while it lasted.