This is a BAD idea.
First of all, Thunderbird is THE most flexible and powerful email client out there. It integrates just about everything there is. It grabs Outlook by the hair and beats it about a pole then tosses it away. Also you are darn right that not everyone uses cloud services. I NEVER use cloud services if I can find any other method. I do not even store my old emails on online servers. I am a firm believer that if you do not have the files on your own servers, then you do NOT own the data nor do you control it. Sure I have copious accounts and profiles all over the Net, but I do not store personal data on those services. Also anything that is posted online, if it is not good for everyone to see, them do NOT post in online. Simple. Cloud services do have their uses, but only for deliberately designated public data like websites, whitepapers, and news posts. This new concept of putting private data online is a serious security flaw and shows very poor judgment indeed on the part of users and companies.
