Who this applies to
Role | Can do |
IT administrator (Microsoft 365 / Exchange Online) | Apply the mail flow rule |
Trusted Sender Email Addresses
The following sender addresses should be treated as trusted:
These are the operational mailboxes used by WorkBuzz Dialogue for notifications and support communications.
Recommendation: Trust these specific email addresses rather than the entire domain wherever possible.
Recommended Allow-Listed Domains
If your email security, web proxy or endpoint protection systems require allow-listing, add:
dialogue.workbuzz.com
links.dialogue.workbuzz.com
assets.dialogue.workbuzz.com
api.dialogue.workbuzz.com
Where security policy permits, the following wildcard may be used:
*.dialogue.workbuzz.com
Option 1 - Exchange Online Mail Flow Rule (Recommended)
This is the preferred enterprise approach.
Create a Mail Flow Rule
Navigate to:
Exchange Admin Center
→ Mail Flow → Rules → Add Rule → Create a New Rule
Rule Name
WorkBuzz Dialogue Trusted Sender Banner
Apply This Rule If
The sender is:
[email protected]
[email protected]
Do The Following
Apply a disclaimer to the message
Example HTML disclaimer:
<div style="background:#dff0d8;border:1px solid #6aa84f;padding:10px;font-family:Segoe UI;">
<strong>Trusted WorkBuzz Communication</strong><br>
This email originates from the approved WorkBuzz Dialogue platform used by your organisation.
</div>
Option 2 - Microsoft Defender Allow List
If your organisation uses Microsoft Defender for Office 365:
Navigate to:
Microsoft Defender Portal
→ Email & Collaboration → Policies & Rules → Threat Policies → Tenant Allow/Block List
Add:
You can also add:
dialogue.workbuzz.com
if your security policy allows domain-level trust.
Option 3 - Remove External Sender Warnings (Optional)
Many organisations use Microsoft’s “External Sender” warning banner.
Where appropriate, create an exclusion so these trusted WorkBuzz addresses are exempt from the warning.
Excluded senders:
This prevents users seeing a red warning banner on approved WorkBuzz communications.
Outlook Safe Senders (Testing Only)
For individual mailbox testing:
Navigate to:
Outlook
→ Settings → Mail → Junk Email → Safe Senders and Domains
Add:
or:
dialogue.workbuzz.com
Note: This only affects the individual user’s mailbox and is not suitable for organisation-wide deployment.
WorkBuzz Recommendation
For the best balance of security and usability:
1. Trust only:
2. Allow-list:
dialogue.workbuzz.com
links.dialogue.workbuzz.com
assets.dialogue.workbuzz.com
api.dialogue.workbuzz.com
Create an Exchange Online mail flow rule that applies a “Trusted WorkBuzz Communication” banner.
Exclude the two trusted sender addresses from any external sender warning policy where organisational policy permits.
This provides a clear user experience while maintaining a principle-of-least-privilege security model