Below are some commonly-asked questions about KnowBe4's Phish Alert Button. If you don't see the answer you need, submit a ticket to our support team.
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- How do I find out which version of PAB I have installed?
- I'm getting an add-in error while using Microsoft 365 Server PAB. How do I resolve this issue?
- My Outlook PAB is disappearing. How do I resolve this issue?
- Can we use our own logo for the Phish Alert Button?
- Can both the client and server PAB be installed on the same machine?
- What is the total number of allowed characters for the non-simulated email message for the PAB?
- Does the PAB update automatically?
- What connections are required in order for the PAB to function?
- Can we change the language of the PAB text and prompt messages?
- What changes can we make to the XML manifests?
- Is the PAB proxy aware?
- What is the file attachment size limit for each version of the PAB?
- My users aren't seeing the PAB in their Outlook app on their phones. Why?
- Can I publish the Microsoft 365 or Outlook Mobile App PAB add-in using any other method?
- Will I still be able to get a copy of the Microsoft 365 and Exchange only manifest files?
- Is the Phish Hook icon customizable for the Gmail add-on?
- How do I pull my Proofpoint email for the Enable Email Forwarding feature?
- Can I pin the Phish Alert Button in my Microsoft 365 Outlook mailbox?
- How do I enable the Phish Alert Button prompts that were hidden in my Outlook mailbox?
1) Question: How do I find out which version of PAB I have installed?
Answer: If you are using the Outlook PAB, the PAB version can find it using the following method:
- Navigate to your Control Panel > Programs.
- Click Programs and Features.
- Navigate to Phish Alert either by scrolling or using the search bar to search for it.
- Check the Version column for the versioning.
If you are using the new Hybrid PAB, which combines the manifest files for Exchange and Microsoft 365, a small icon will appear to inform you on whether you are using Exchange or Microsoft PAB. The versioning for the server PABs is as follows:
| Exchange PAB | Version 1.0.0.0 |
| Microsoft 365 PAB | Version 2.0.0.0 |
If you are using Chrome PAB, the version of the extension updates automatically. You can check the current version by clicking on the Phish Alert Icon to the right of the search bar of your Chrome browser (click to view).
Chrome PAB
- Hover over More Tools and select Extensions.
- Locate the Phish Alert extension and click Details. From the details window, you'll be able to see the version number.
2) Question: I'm getting an add-in error while using Office 365 Server PAB. How do I resolve this issue?
Answer: If you are receiving this error, you will want to check your Internet Explorer settings by doing the following:
- In Internet Explorer, navigate to Tools > Internet Options.
- Go to Security > Internet Site Zone.
- Make sure the Enable Protected Mode checkbox is selected.
- Restart Internet Explorer and Outlook.
For more information, see Microsoft's article on the subject here on their support site.
3) Question: My Outlook PAB is disappearing. How do I resolve this issue?
Answer: If your PAB is disappearing on Outlook and you are using a Mac, follow these steps to fix this:
- In Outlook, go to the Preferences tab > Privacy.
- Enable the Connected Experience Settings for PAB.
- Restart Outlook.
If your PAB is disappearing on Outlook and you are using a Windows machine, follow these steps to fix this:
4) Question: Can we use our own logo for the Phish Alert Button?
Answer: Yes. You can add your own custom logo to use for the PAB from your Account Settings page. For more information on how to do this and the requirements for the image, please see the How to Change the PAB Icon article on our Knowledge Base.
5) Question: Can both the client and server PAB be installed on the same machine?
Answer: Yes, both can be installed on the same machine and used without any issues.
6) Question: What is the total number of allowed characters for the non-simulated email message for the PAB?
Answer: The total number of characters is 469 or six full lines of text.
7) Question: Does the PAB update automatically?
Answer: The Exchange PAB, Microsoft 365 PAB, or Chrome PAB update automatically. The only version of PAB that needs to be updated manually is the Outlook PAB. To update the Outlook PAB, you will need to download and install a new PhishAlertButtonSetup.exe file from your account settings page.
8) Question: What connections are required in order for the PAB to function?
Answer: The PAB needs to be able to send an HTML POST request on port 443 (Port 443 is the default port for http) to the domain: training.knowbe4.com, eu.knowbe4.com, ca.knowbe4.com, de.knowbe4.com, or uk.knowbe4.com. Depending on your setup, some proxies or firewalls may need the full path. If this is the case, please ensure that your PCs can reach https://training.knowbe4.com/api/v1/phishalert/ by allowing outbound connections to remote servers on port 443, which is the server URL the PAB is trying to contact with a POST request.
Note: If you are using Microsoft 365 PAB, the PAB needs to be able to send an HTML POST request on port 443 to the domain: us.pab.knowbe4.com or eu.pab.knowbe4.com.
9) Question: Can we change the language of the PAB text and prompt messages?
Answer: Yes! Our Language Aware feature is already implemented for all Outlook add-in versions of the PAB, which includes the Exchange and Microsoft 365 versions. You can add as many languages as you would like to every PAB instance that you may have. For more information on how to access this new feature, please see our Adding Languages to the Phish Alert Button article.
10) Question: What changes can we make to the XML manifests?
Answer: Our team only supports and encourages the changes outlined in our documentation.
For more information:
11) Question: Is the PAB proxy aware?
Answer: No, the PAB is not proxy aware.
12) Question: What is the file attachment size limit for the PAB?
Answer: The chart below shows the file attachment size limits for each version of the PAB.
| PAB Version | Attachment Size Limit |
| Microsoft 365 | 10 MB |
| Exchange | 1 MB |
| Outlook | 20 MB |
| GSuite Extension | 10 MB |
13)Question: My users aren't seeing the PAB in their Outlook app on their phones. Why?
Answer: This could be caused by the add-in not being made mandatory during the installation process. This can be found on step 5 of the Hybrid Phish Alert Button Product Manual article. The PAB will not appear in Outlook for mobile if the add-in was not deployed using the Fixed method. Your users must enable the PAB themselves in their Outlook app settings.
14) Question: Can I publish the Outlook Mobile App and Office 365 PAB add-in using any other method?
Answer: Yes, the add-in can also be sideloaded. Please contact support for assistance.
15) Question: Will I still be able to get a copy of the Microsoft 365 and Exchange only manifest files?
Answer: Yes, please contact support for assistance.
16) Question: Is the Phish Hook icon customizable for the Gmail add-on?
Answer: No, the Phish Hook icon that your users click on to report suspicious emails, is not customizable.
17) Question: How do I pull my Proofpoint email address for the Enable Email Forwarding feature?
Answer: You can add your Proofpoint email address to the Send Non-Simulated Emails to: box under the Phish Alert section of your Account Settings. For more information on the Enable Email Forwarding feature, visit our Phish Alert Button Product Manual.
18) Question: Can I pin the Phish Alert Button in my Outlook mailbox?
Answer: Yes, you can pin the PAB to your Outlook mailbox. Follow the instructions below to learn how to pin the PAB:
- Select Settings > View all Outlook settings > Mail > Customize actions.
- Select the check box for the Phish Alert Button.
For more information on using add-ins in Outlook, visit Microsoft's Using add-ins in Outlook article.
Note: If you are using Outlook web access (OWA), new add-ins will be pinned on the Outlook ribbon automatically. You will also see an information nudge about the add-in when installed. See Microsoft's Using add-ins in Outlook on the Web article for more information about add-ins in OWA.
19) Question: How do I enable the Phish Alert Button prompts that were hidden in my Outlook mailbox?
Answer: Your Outlook mailbox provides a PAB instance setting that determines whether or not the confirmation screen is displayed when you report an email.
Follow the instructions below to learn how to re-enable hidden prompts for the PAB:
- In Outlook, navigate to the File tab and select the name of the PAB instance.
- Under Settings, uncheck the Hide Prompts check box. The confirmation screen will be displayed when you report a message with the PAB.
Note: If you have a version of the PAB for Outlook which displays the confirmation screen with the Do not show confirmations again check box, you can also select this check box to hide the prompts. You'll still need to uncheck the Hide Prompts check box to re-enable the prompts.
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