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#Unarchiver online how to
#Unarchiver online archive
#Unarchiver online Offline

Folders present in archive and primary mailbox are merged.

Folders present in archive but not in primary mailbox will be moved in one operation.

The most optimal operation will be chosen:.

Invoke-Unarchive will move contents from the in-place archive back to the primary mailbox.

The script Invoke-Unarchive will perform the following tasks: Note: Untested with Primary mailboxes on-premises and Exchange Online Archives.

In addition to installing the NuGet packages, you can also store the DLLs in the same folder as the script.

Also, you need to have registered an App in Azure Active Directory the Tenant ID, Application ID and certificate or secret is what you need to provide the script with to operate successfully.

When using OAuth, the MSAL library is required (NuGet package ).

Exchange Web Services (EWS) Managed API 2.21 or later ( how to, NuGet package ).

Exchange Server 2013 SP1 or later, or Exchange Online.

To help organizations accomplish this task, I wrote a PowerShell script which requires the following: Note: If I overlooked something in this area, please let me know. Also, the solution would have to use Exchange Web Services, as a limitation in Microsoft Graph makes it incapable of moving messages between multiple mailboxes. While there is a ‘archive’ operation for mailbox items (which moves it to the assigned Archive folder, not the in-place archive) there is no other single API call to perform this task. When investigating a possible solution I found that there is no other way to accomplish this, than to programmatically move contents from the in-place archive to the primary mailbox. Also, not every organization would like to instruct end users to unarchive this contents themselves, as it is prone to failure, blocks Outlook for Desktop from doing anything else and might result in abandoned operations which limits future actions as moves are still happening in the background. While retention policies can move data in opposite direction, there is no such thing as a reverse-retention policy.

#Unarchiver online how to

Switching to the large mailbox concept creates a problem for those organizations that have already enabled in-place archives for their end users: How to get that data back from those archives to the primary mailbox. Non-stubbing 3rd party archive solutions taking data out of Exchange can also be a option. The maximum number of items per folder is such a limit, however these have been raised or done away with in recent years.

#Unarchiver online Offline

For those, staying with Exchange Online archives – and when needed auto-expanding archives – is usually still an option due to the different type of mailbox interaction, or to circumvent Exchange’s storage limitations or Outlook for Desktop’s synchronizing of offline cache files before issues might be seen. There are still exceptions of course, usually in the form of substantial – usually shared – mailboxes. In recent years, I have seen archives becoming less relevant, and organizations adopting the large mailbox concept in favor of lean and mean mailboxes with archives. It’s not uncommon to see people panicking about “missing data” in service tickets, only to discover their “missing data” was moved to their archive by the company retention policy after some digging. Also, and this is not to be underestimated, end users do not always grasp the concept of archives and the impact on the tasks and tools they use. Most notably are perhaps clients not supporting archives at all, or searches not spanning both mailbox and archive. Exchange’s built-in Messaging Records Management (MRM) through retention policies and tags can be used for automatic moving of older items to the archive.Īrchives also come with few downsides, especially in the early days. PST files.Īrchives introduced benefits such as lowering disk footprint by taking infrequently used items out of the primary mailbox (which then could only synchronize in full) to the archive, which is basically an additional mailbox for long-term storage. It was up to end users to make sure their mailbox remained within its limits, either by removing either old items, large items or just move them out of their mailbox to those pesky. The feature which I am talking about is Exchange’s Personal Archives, Online Archives, or In-Place Archiving as it is called nowadays.Īrchives were introduced at a time when Office 365 was in its early days, many organizations were running Exchange on-premises with mailbox quotas as bandwidth and storage were limited or relatively expensive. With the introduction of Exchange 2010 at the end of 2009, a native feature was added to Exchange Server for which organizations required 3rd party products before that.