How to Recover Deleted Files and Emails in Microsoft 365: A Step-by-Step Guide for SMEs

Helpful Thursdays: Recover Lost Files and Emails Before the Window Closes

Accidentally deleted an important customer email? Missing a project document from OneDrive? A Teams folder may appear empty after someone removed its contents.

For SMEs, these incidents can quickly become operational problems. Lost quotations, contracts, invoices and project files can delay work, create compliance concerns and damage customer relationships.

The good news is that Microsoft 365 includes several recovery options. The important point is knowing where to look, how long the data remains available and when you need an administrator or specialist IT support services provider.

This guide explains how to recover deleted files and emails from OneDrive, SharePoint, Microsoft Teams and Exchange Online.

Important: Microsoft 365 recycle bins and deleted-item folders are useful recovery features, but they are not a complete backup. Their retention periods are limited and can vary according to your organisation’s configuration.

Before You Start: What You Need

You will need:

• Access to the correct Microsoft 365 account.
• The name, location or approximate deletion date of the missing item.
• The name of the user, SharePoint site, Teams team or mailbox involved.
• Permission to access the relevant recycle bin or mailbox.
• Administrator assistance for second-stage recovery, retention policies, holds or expired recovery windows.

Keep a note of the original file path or email folder. Restored content normally returns to its original location, but files may be renamed if another item now exists at the same path.

Microsoft 365 Recovery Windows At A Glance

The settings in your tenant may differ. Retention policies, legal holds and backup products can provide additional protection, but they must be configured before an incident occurs.

Step 1: Confirm Where The Item Was Stored

Before attempting recovery, identify the service that held the data.

• OneDrive: Usually personal work files belonging to one user.
• SharePoint: Shared documents, departmental folders and team sites.
• Microsoft Teams: Channel files are stored in the connected SharePoint site.
• Exchange Online: Email, calendar items, contacts and tasks stored in Outlook.

Teams is a common source of confusion. Files shared in a Teams channel are not stored inside Teams itself. Select the Files tab, choose Open in SharePoint, and use the SharePoint recycle bin.

Do not immediately upload a replacement file with the same name. This can make it harder to identify the correct version during recovery.

Step 2: Recover A Deleted File From OneDrive

A user can usually recover their own deleted OneDrive files without administrator assistance.

1. Go to OneDrive and sign in with your work or school account.
2. Select Recycle bin from the navigation pane.
3. Locate the deleted file or folder.
4. Select the item’s checkbox.
5. Select Restore.

The file should return to its original location.

Tip: OneDrive for Business files are typically retained for up to 93 days. The countdown begins when the item is deleted from its original location. If the user empties the recycle bin, the item moves to the second-stage recycle bin managed by SharePoint.

If you cannot find the file:

• Check whether you are signed into the correct work account.
• Search the OneDrive recycle bin by filename or deletion date.
• Check the local Windows Recycle Bin if the file was synchronised to a computer.
• Ask a Microsoft 365 administrator to check the second-stage recycle bin.
• Check whether the file was shared with you rather than owned by you. Shared files may need to be recovered by the original owner or site administrator.

A file that has been permanently removed from both recycle bin stages cannot normally be restored through standard OneDrive tools.

Step 3: Recover Files From SharePoint Or Teams

SharePoint uses two recycle bin stages. The first is available to users and site owners. The second is intended for site collection administrators.

First-stage SharePoint recycle bin

1. Open the relevant SharePoint site.
2. In Microsoft Teams, go to the channel’s Files tab and select Open in SharePoint.
3. Select Recycle bin.
4. Select the deleted file or folder.
5. Select Restore.

The item should return to the original library and folder.

Tip: SharePoint Online and Teams files are normally retained in the recycle bin system for 93 days from the original deletion. Moving an item to the second-stage recycle bin does not restart this period.

Second-stage site collection recycle bin

If the file has been removed from the first-stage recycle bin, a SharePoint site collection administrator may still be able to restore it.

1. Open the SharePoint site.
2. Select Settings and then Site contents or Site settings.
3. Open Recycle bin under Site Collection Administration.
4. Select second-stage recycle bin.
5. Select the file or folder.
6. Select Restore.

You generally need site collection administrator, SharePoint administrator or appropriate owner permissions to use this area.

If a whole site has been deleted, a SharePoint administrator may be able to restore it through the SharePoint admin centre, subject to the available retention period.

Step 4: Recover Deleted Emails In Outlook

Email recovery happens in two stages.

Restore an email from Deleted Items

1. Open Outlook or Outlook on the web.
2. Open the Deleted Items folder.
3. Select the email.
4. Choose Move.
5. Select the Inbox or another folder.

This is the simplest recovery method and is normally available to the mailbox user.

Use “Recover items deleted from this folder”

If the email is no longer in Deleted Items, it may still be in Exchange Online’s hidden Recoverable Items folder.

In new Outlook or Outlook on the web:

1. Open Deleted Items.
2. Select Recover items deleted from this folder.
3. Select Recover.
4. Choose the required email.
5. Select Restore.

In classic Outlook, open Deleted Items and select Recover Deleted Items from Server.

Tip: Exchange Online’s default deleted-item retention period is generally 14 days after permanent deletion. An administrator can usually increase this to a maximum of 30 days for a mailbox. Your organisation may use different settings.

Recovered emails normally return to Deleted Items first. Move them to a suitable folder after confirming that the correct message has been restored.

If the recovery option is missing, the account may not support it, the item may have expired or your organisation may require administrator assistance.

Step 5: Escalate To A Microsoft 365 Administrator

Administrator involvement is required when:

• The item has been permanently deleted by the user.
• A user cannot access a SharePoint second-stage recycle bin.
• A mailbox needs searching beyond the user’s Outlook recovery options.
• The user account or OneDrive account has been deleted.
• A retention policy, legal hold or investigation applies.
• A large number of files or emails need restoring.
• A ransomware or malicious deletion incident is suspected.

Exchange administrators can use the Exchange admin centre to search for and recover deleted messages, subject to the required permissions and retention window. Microsoft’s Exchange Online recovery guidance explains the available options.

SharePoint and OneDrive administrators can use the relevant admin centre tools to restore deleted sites or accounts and access higher-level recycle bins.

When Recycle Bins Are Not Enough

Native Microsoft 365 recovery features are not the same as a backup.

Recycle bins are designed for short-term accidental deletion. They may not protect your business against:

• Deletion followed by recycle bin purging.
• Ransomware or widespread file encryption.
• Malicious activity by a compromised account.
• Incorrect file changes that are not noticed quickly.
• Deletion beyond the standard retention period.
• Loss of an entire user account, site or mailbox.

Retention policies and legal holds can preserve data for compliance and eDiscovery purposes. However, they are not always designed for fast operational restores.

Microsoft 365 Backup provides a separate recovery layer for supported OneDrive accounts, SharePoint sites and Exchange Online mailboxes. Microsoft’s Microsoft 365 Backup overview describes full and granular recovery options.

For SMEs, the right approach is to document:

1. Which Microsoft 365 data is business-critical.
2. How long it must be retained.
3. How quickly it needs to be restored.
4. Who can approve and perform a recovery.
5. Whether a separate backup solution is required.

Common Pitfalls And Troubleshooting

The file is not in the recycle bin

Confirm the correct account and SharePoint site. Teams files may be stored in a different channel or team than expected.

The file was overwritten, not deleted

Check the file’s version history in OneDrive or SharePoint. Restoring an earlier version may be safer than restoring the entire file.

The restored file has a different name

A file with the original name may already exist in the folder. Check for a numbered copy and compare its modified date.

The email is not visible in Outlook

Search by sender, subject and date. If it is not in Deleted Items, use Recover items deleted from this folder or contact your administrator promptly.

Recovery permissions are missing

Do not repeatedly change permissions or empty recycle bins. Contact your IT administrator or Managed IT services provider so the recovery trail is preserved.

The deletion may be malicious

Stop synchronisation on affected devices if instructed by your IT team, avoid deleting further content and report the incident immediately. A rapid response can protect remaining recovery points.

Frequently Asked Questions

Can I recover a deleted OneDrive file after 93 days?

Usually not through the standard recycle bin. Recovery may still be possible if a retention policy, legal hold or separate backup was configured.

Are Microsoft Teams files stored in Teams?

Channel files are stored in the SharePoint site connected to the team. Recover them by opening the channel’s Files tab and selecting Open in SharePoint.

How long are deleted emails kept in Microsoft 365?

Exchange Online commonly keeps permanently deleted items for 14 days by default. This can normally be extended up to 30 days per mailbox, subject to configuration.

Can a standard user restore an email?

Yes. Users can restore items from Deleted Items and, where enabled, from the Recoverable Items area. Administrator recovery is needed when the item is purged, expired or subject to a hold.

Are Microsoft 365 recycle bins a backup?

No. They provide useful short-term protection, but they do not replace a tested backup and recovery plan.

Need Help Recovering Microsoft 365 Data?

Fast recovery depends on knowing where your data is stored and acting before the relevant retention window expires.

Anantek Solutions provides practical IT support for small business, Microsoft 365 guidance and ongoing Managed IT services. We can review your recovery settings, retention policies, Microsoft 365 Backup requirements and wider infrastructure so your business is protected before an incident occurs.

Contact Anantek Solutions for support that works quietly behind the scenes. With the right Microsoft 365 for SMEs strategy, your IT becomes dependable Invisible Infrastructure: built for reliability, resilience and Tech That Lasts.