I always thought with Firefox + Thunderbird, the next natural evolution would be mail service integration and SaaS mail offerings. So many companies now outsour

I always thought with Firefox + Thunderbird, the next natural evolution would be mail service integration and SaaS mail offerings. So many companies now outsource their mail and the Thunderbird devs had so much insight into the space it could have been a natural extension with revenue diversity. They could have been on the path of Google Apps and Office 365 before they even existed. Now, who knows.