In this article we will learn how to automatically install/roll-out the Microsoft Office 365 Outlook Phish Hook add-in button to all users at once.

The Phish Hook Button add-in for Microsoft Outlook / Office 365 gives end-users the ability to report suspicious emails. The button allows your employees to take an active role in managing the problem of Phishing and other types of malicious emails. This has the benefit of providing your IT/security team with early warnings of possible phishing attacks or malicious emails, allowing them to take effective action to prevent security or network compromise.

The button will also track if your users report our simulated phishing emails, so you can see which users are successfully engaging and identifying potentially malicious emails.

Prerequisites

You will need one of the following servers:

• Office 365
• Exchange Server 2016, Hybrid Only - Version 15.1.544.27 or newer

The PhishHook Button can be used on the following mail clients:

• Outlook 2016 for Windows
• Outlook 2016 for Mac
• Office 365 OWA

From the Phishing Tackle Dashboard:

1. Click "Organisation" > "Settings" on the main menu
2. Click "PhishHook Button"
3. Check "Enabled"
4. (Optional) Adjust the default settings to match your organisation
   
   • For more information, see PhishHook Button - Overview
5. Download the Office®365® Manifest File and store in a memorable location

From the mail server Admin portal:

1. Click "Settings" > "Services & add-ins" on the main menu
   
   
   
2. Click "+ Deploy Add-in"
   
   
   
3. Read the notice about Centralized Deployment and click "Do not show this introduction again."
   
   • This will only show if you have not used the deployment wizard already
4. Click "Next"
   
   
   
   
5. Select "I have the manifest file...", hit "Browse", then select the Office® 365® Manifest File you saved earlier 
6. Hit "Next"
   
   
7. Select which users have access to the Add-in
   
   • We recommend choosing "Everyone"
8. Select the deployment method
   
   • We recommend choosing "Fixed", this is the default and you will have to click "View options" to see the list of options
9. Click "Deploy now"

Your Services & add-ins area should now show the Phish Hook add-in: