Alternative to Outlook for business use
I'm trying to make the switch from PC to Ubuntu and I'm not sure if I can fully replace Outlook yet.
I use Outlook for my business, have 30+ email accounts on it, use the calendar, contacts, and pretty much all the options that Outlook has. What are my best options to replacing Outlook moving forward on Ubuntu? It looks like Thunderbird is the most advance one. Can it manage 30+ accounts or does it have a limit? Also is there any way I can import my Outlook data file o Thunderbird so i dont lose my old emails?