Microsoft Exchange - Locally Hosted!

MS Exchange - Basic 1

1 - 49 users
25GB per account
Minimum 1 basic mailbox

MS Exchange - Basic 2

50 - 100 users
25GB per account
Minimum 50 basic mailboxes

MS Exchange - Standard 1

1 - 49 users
25GB per account
Minimum 1 standard mailbox

MS Exchange - Standard 2

50 - 100 users
25GB per account
Minimum 50 standard mailboxes