change outlook rule from client side

Question

I need to change outlook rule to server from client to make sure appropriate staff are notified

Answer 1

Hi @Kimberly Small,

Thank you for reaching out to Microsoft Q&A forum. 

The warning indicates the rule is still treated as a client-side rule, even though “On this machine only” isn’t selected. This happens when the rule uses conditions or actions that the Exchange server can’t handle.

Server-side rules run on the Exchange server and work even if Outlook isn’t open. Client-side rules require Outlook to be running because they rely on local resources or unsupported features.

Typical client-only triggers include:

• Moving emails to a local PST file.
• Using categories, scripts, or custom templates.
• Searching for specific words in the message body (sometimes supported but can be complex).
• Forwarding to external addresses (may need admin approval).

Here are suggestion steps you can try to make it server-side:

1. Open Rules

• Go to File > Manage Rules & Alerts > E‑mail Rules tab.

2. Identify client-only rules  

• Look for rules marked as (client-only). Double-click to edit.

3. Remove client-only actions/conditions

Replace actions like “play sound” or “display alert” with server-compatible options:

• Redirect to recipient (preserves original sender - ideal for staff notifications).
• Forward to recipient (shows you as sender).
• Move to mailbox folder (not local PST).
• Copy to mailbox folder.
• Add a message flag (avoid UI alerts).

Avoid “run a script,” “start application,” categories, or local PST moves.

4. Use mailbox folders only  

• If moving mail, target folders in your Exchange/M365 mailbox, not local data files.

5. Prefer “Redirect” for notifications  

• Redirect keeps the original “From” field so staff see who sent the message.
• Action: “redirect it to people or public group” > select staff or a distribution group.
• If external forwarding is needed, confirm your organization allows it.

6. Save & apply  

• After removing client-only elements, the (client-only) tag should disappear. The rule will then run on the server, even if Outlook isn’t open.

7. Submit support ticket

To ensure a smooth transition from client-side to server-side rules, you can submit a support request through the Microsoft 365 Admin Center (if you have admin rights). A Microsoft support engineer will be able to investigate the issue in detail and assist with troubleshooting.

As community moderators, we’re here to guide you, but due to privacy and security limitations, we don’t have access to the backend tools required for a full resolution. For this reason, contacting Microsoft Support via the Admin Center is the most secure and efficient way forward.

Alternatively, you can create the rule in Outlook on the Web (OWA):

• Go to Settings > Mail > Rules.
• Rules created in OWA are always server-side.

Tips for reliable staff notifications:

• Distribution list or shared mailbox: If multiple staff must be notified, target a distribution group (DG) or shared mailbox rather than many individual addresses.
• Use Redirect for clarity: Staff see the original sender; they can reply-all appropriately.

I hope this information is helpful. Please follow these steps and let me know if it works for you. If not, we can work together to resolve this.    

Thank you for your patience and your understanding. If you have any questions or need further assistance, please feel free to share them in the comments on this post so I can continue to support you. 

I look forward to your thoughts on this. 

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