My company tells me that Office 365 will not work with MS Office 2010 Home and business. I fail to understand that since the features are same between professional and H&B except MS Access is not included in H&B.
To be honest - have never used/installed Outlook from an Office H&B suite so can't say with absolute certainty. There are certainly limitations regarding advanced Exchange features but as for not being able to connect to Exchange account outright
- not aware of any limitations. Would be surprising given that Outlook.com accounts are being moved to the Office 365 Exchange server backend (albeit it - not with full Exchange functionality).
Some additional info on licenses/functionality in terms of some the advanced Exchange features
Outlook license requirements for Exchange features
https://support.office.com/en-ie/article/Outlook-license-requirements-for-Exchange-features-46b6b7c5-c3ca-43e5-8424-1e2807917c99
If any of the features listed in the above article are going to be used then there's no question that the H&B Outlook version won't be viable for those features but seems odd that someone would only purchase E1 licenses thinking/knowing
that 50 users would not be able to use them with their current Office suite. Something is missing in this picture - do these users pay for their own Office software?