Exchange Online Archiving

HCHTech

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I've recently migrated a customer from local Exchange to Exchange Online. All 35 employees are using Outlook.

When they had local Exchange, we used archiving to keep old emails still accessible, but out of the main mailbox. The archives are in PSTs and stored on the server, backed up each night with the regular backup.

Some employees have years of archives, totaling 20 to 30 GB of data.

The owner of the company is particularly egregious in this, essentially using his Deleted Items folder as storage for old messages. His archives consist almost entirely of Deleted Items and Sent Items. I have tried over the years to push him into a more-accepted way to handle his email, to no avail. This is his system and he wants to keep using it.

So, now that we are using online Exchange, with a 50GB limit per mailbox, I'm wondering how best to handle the existing and future archives.

- I could continue to handle archiving locally, setting Outlook to auto-archive to the PSTs in my existing network folder. I would turn off the online archiving.

- I could import all of the existing archives into the employees' online files, and let Exchange handle archiving online. My total local archives at this point are about 150GB.

- I could use online archiving for most folks, but keep local archiving for the 5 or 6 folks that have the big archives.

I'm also concerned with the Deleted Items retention policy for the owner that will not be expecting his Deleted Items folder to be messed with in any way. For now, I've set his online account retention policy to "No Policy", but I'm wondering if this is the equivalent of "off" or not.

This is a non-HIPAA environment and there are no industry requirements regarding email retention.

How would you handle this?
 
I would try to recommend a true archiving solution, however if they are not willing to spend the money. I would just keep the local archiving going and make sure you have it on a server share and they are backed up.

If they continue to use the local archiving method I would ask them to sign something stating you are not responsible to archives being lost or damaged.
 
No. Each employee has his own network archive directory, and most all of the archive psts are always open in their outlook. We've been using this system for years. Outlook is set to sweep everything older than 6 months to the archive one per week. For folks that have a lot of mail, we create new archive files each year. The biggest archive pst is about 4gb, but all of the others are <=2gb.
 
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