Signature 365 ports and URLs

Scenario

You wish to understand which ports and URLs are required for the Signature 365 web portal, add-in and agent to function.

Solution

All Signature 365 services connect via port 443, using TLS 1.2 or higher.

We recommend allowing *.signature365.com to account for any future additions or changes to the configuration requirements.

Where [region] is listed, this should be replaced with your Signature 365 region code, this is listed at the bottom of the article.

Web Portal

app.signature365.com
id.signature365.com
templates.signature365.com
images.[region].signature365.com

Outlook add-in

id.signature365.com
outlook.signature365.com
https://appsforoffice.microsoft.com/lib/1/hosted/office.js

Outlook Classic Agent, Import Tools, Exchange Transport Agent

gateway.signature365.com
id.signature365.com
templates.signature365.com
images.[region].signature365.com