Outlook.com backups.......or not

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Outlook version
Outlook 2016 64 bit
Email Account
Outlook.com (as MS Exchange)
I saw an old thread recently where Diane Poremski suggested that it wasn't necessary to keep backups of outlook.com items. I recently lost more than 1000 items from outlook.com -though I did have them on my own backup!
I tried to discuss this with both MS Support and MS Community but neither seemed prepared to discuss any principles only the non available recovery. As I am thinking of moving to Office 365 I am wondering what current thinking is and what confidence I should have that further losses from my email archive will not occur. I would welcome any views, comments or suggestions for which I offer thanks in advance.


For completeness I give the original posting on MS Community

I decided to use outlook.com as my email archive. It is linked to an Outlook 2010 client.

In November I noticed that more than 1000 emails were missing in 5 folders. The folder structure remained on the client, though empty. This implies to me that the emails were removed at the email not folder level. The top folder was Family and contained message within my family over the last 15 years. I last placed an item in the folders on a Thursday and they were all gone by Tuesday.

I contacted MS Support and after some interactions I got a clear but unhelpful statement that nothing was available for recovery. There was no comment on how this might have happened. They apologised for my frustration. I felt a little let down as this data is very important to me and I would like some idea what happened to it.

Now to be clear I have lost only a handful of items as I keep pretty rigorous backups my self. But rather it is the lack of audit trails/information that concerns me particularly as I was thinking of moving to Office 365. I asked for more general information but have had no response probably because the ticket was closed.

So, could someone please point me towards any discussion on audit trails and security in general in O.com.
Can you please point me at MS recommendations for user backups of emails held in O.com
Can you tell me if O.com is the same function as the Outlook element of Office 365 or are they different platforms.

Needless to say I have tried to find this information but have been singularly unsuccessful
Did you put the item in the folder in outlook or move it in outlook.com (in a browser)? If you moved it in outlook, its possible it didn't get synced up and was removed when the folder refreshed.

Office 365 won't have as many problems as outlook.com does - it's backed by enterprise Exchange servers, unlike outlook.com which is not. If you use a smartphone or multiple computers, it will work great across all. If you need to import mail, you can.
Diane, many thanks for your response.

As I recall most of any manipulation was done in Outlook but it was 6 months ago and my archive was entirely stable until mid November.

You seem to be saying that Office 365 is a much stronger/more reliable platform which is a relief. Would you advise a backup strategy of regular, occasional or don't bother.

kind regards
I'm in the "don't bother" camp with office365 exchange online. It's business-class email - it has deleted items recovery for deletions (30 days after it's removed from deleted items) so you don't need a backup to protect you from accidental deletions either.
Diane, thank you again.
I did move to Office 365 but I will take regular backups for a while yet! I quickly 'bumped into' -
the unable to change eas folders problem
the no categories in eas contacts problem
the no contact groups problem
My first response was that eas is a crock of worms and has taken us backwards. Anyway I'll persevere and see where we get to.
I wanted to say thank you for what you do. I have always found your advice straightforward, sensible and always helpful. You truly are a most valuable person.
Kind regards
I did move to Office 365 but I will take regular backups for a while yet! I quickly 'bumped into' -
the unable to change eas folders problem
the no categories in eas contacts problem

If you are running into these problems you aren't using Office 365 Exchange - you are using Outlook.com, which I see you mentioned in the first post. Sorry. (I hate the person who thought "Office365" made a great name for everything!)
When it comes to Outlook.com, Outlook 2010 and the Outlook Connector is a little better experience. Office 365's Exchange Online (on the Business side) is much better, but not free.

EAS is good when used the way it was designed - for syncing with smart phones and their lightweight apps. It really wasn't designed for client use but microsoft thought it would work in outlook- once it got into heavy usage and they saw how people wanted to use it, they realized it wasn't good in a full client. They are working on fixing the problem but it requires a major change and that is not expected to be live until next year (unfortunately).
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