I have no desire to ask a question that's already been answered, but I can't find a proper answer anywhere.
I'm the IT manager for a small construction company with 20 users.
Currently our email is IMAP (on PC's, iPhones, Blackberries & iPads) hosted by a local company with patchy archiving (relying on Outlook autoarchive which isn't reliable) and almost non-existent backup. (I've tried VVPro for backups but it relies on Outlook being closed. I've purchased and installed SafePSTbackup by 4Team but it's RUBBISH, totally unreliable and everything needs to be configured in plain text code.)
Our biggest user has a 15GB mailbox and the others are between 2 and 10GB.
I'm moving all email to Exchange online / Office 365, hosted by Microsoft.
(**That's email hosting only; our Office licences are ordinary Office 2010 and 2013 licences on our PC's).
I need a backup solution and I need an archiving solution.
I could just upgrade the Exchange hosting to include archiving (twice the cost, $8.80 per user per month instead of $4.40), but I've already "sold" the present cost point to my boss. (however he'd be reasonable if I explained the situation to him).
The weak point of that is that everything would still rely on that cloud server (Microsoft 365). If anything goes wrong, we don't have our own copy.
How can I get a backup copy that can be stored on the office NAS?
The mailbox size on this plan is 50GB max. Do I then need archiving? or could I just leave it all on the cloud and only store 12 months or so in the offline ost's?
What are my options?