Lacking calendar and contacts sync are a critically missing feature here. I'm not sure what there is to like here above IMAP access. Aside: Mozilla should rea

Lacking calendar and contacts sync are a critically missing feature here. I'm not sure what there is to like here above IMAP access. Aside: Mozilla should really create a nice full-featured email server with the features found in Exchange/O365 for use with Thunderbird... it's a space that desperately needs competition and more solutions.