Should I use Cached Exchange Mode in Outlook in O365 Home? (Only a home PC.)

  • Thread starter Thread starter glnzglnz
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glnzglnz

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I have Win 10 Pro 64-bit and O365 Home 64-bit on my home PC, with three 2TB hard drives – one for OS and apps, one for Files and one for Backups. It’s on a small home LAN network with the usual other devices, printer, etc. Not a domain. My internet connection is Verizon FIOS 400Mbps with low latency (typically 5ms to any nearby test server).


I am about to set up my Outlook in O365, but in the setup steps, it is showing Cached Exchange Mode checked and greyed out so I can’t change it. Should I do anything? FYI – I canceled out of the setup to get this question answered.


FYI – I had decided to let the Outlook setup connect first to my Outlook.com emails ([myname]@outlook.com) rather than fight for an installation first pointing only to my email accounts at [myname]@verizon.net and [myname]@[spouse’sSOHOdomain].com. After I get [myname]@outlook.com running on Outlook in O365, I will then add the [myname]@verizon.net and [myname]@[spouse’sSOHOdomain].com.


FYI more – on an old XP computer, I am connected to [myname]@verizon.net and [myname]@[spouse’sSOHOdomain].com ONLY as POP3 with “Leave a copy of messages on server” checked. But I think the time has come to switch to IMAP when I get Oultook running in the O365. Later later, I might try to move the old email folders in the XP machine over so I can access them in the new Outlook, but that can wait.


  1. Well, what about Cached Exchange Mode checked?
  2. Also, I will want the OST or PST files with all the emails to sit on my second hard drive (for Files) rather than the default position on the first hard drive (for apps and OS)
  3. And any more general comments on how to do this?


Many thanks for your detailed step-by-step suggestions with photos, arrows and a discount coupon for a Scotch. Now, wash your hands.




glnzglnz
☺ In the office, Dell Optiplex 7040 with 8GB RAM, Win 10 Pro 64-bit and Office 2016
☻ At home, Dell Optiplex 7010 with 16GB RAM dual-booting Win 7 Pro 64-bit and Win 10 Pro 64-bit (both with Office 365 Home)
♥ Also still have Dell Optiplex 755 with 4GB RAM with Win XP Pro SP3 (which got updates through April 2019 with the POS hack) and Office 2003

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