Mail Client Extensions

Thunderbird

Requires Thunderbird 128 or newer.

Download Thunderbird extension (v1.5.16)

1. Open Thunderbird → Add-ons and Themes
2. Click the gear icon → Install Add-on From File…
3. Select the downloaded .xpi file
4. Open the extension and follow the pairing wizard

After the first install, Thunderbird checks for updates automatically every hour and applies them in the background. You can also use Add-ons → gear → Check for Updates.

If you installed an older build before auto-update was enabled, update once manually; later updates apply on their own.

Outlook

Outlook desktop with Office Add-ins support.

Download Outlook manifest (v1.5.16)

Recommended: install from URL so Outlook can refresh the manifest:

https://apps.datacenterwest.com/addins/outlook/manifest.xml

1. In Outlook: Get Add-ins → My Add-ins
2. Add a custom add-in → Add from URL… (or Add from file… if URL is unavailable)
3. Use the manifest URL above, or select manifest.xml from the downloaded zip
4. Open the Email Apps task pane and follow the pairing wizard

Task pane UI is hosted on this site and refreshes automatically when you open it. Manifest URL installs pick up manifest changes without re-uploading a file.

Mobile (PWA)

Manage email apps and spam filter settings from your phone browser or home screen.

Open mobile app

1. Open the mobile app link above in Safari (iOS) or Chrome (Android)
2. Sign in to the portal and generate a pairing code
3. Tap Open mobile app to pair on the portal, or enter the 6-character code manually
4. Optional: use your browser’s Add to Home Screen menu to install the app

Pairing uses the same code flow as Thunderbird and Outlook. After generating a code on the portal, use the one-tap mobile link or copy it to open the app with the code pre-filled.

Pairing

After installing, sign in to the portal and generate a pairing code on the dashboard.

Read What it does for an overview of Email Apps and why IMAP is recommended.