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Service Information
Browse service information covering security, privacy, networking, permissions, and platform support for Signature 365.
Creating a new Signature 365 subscription
Convert your trial into a paid Signature 365 subscription with billing, user count, and address details.
Enabling Single sign-on (SSO) for Signature 365 management accounts
Enable single sign-on for Signature 365 management accounts from each user's profile settings.
How to setup Signature 365
Set up Signature 365 with Microsoft 365 integration, Outlook add-ins, agents, and sent items updates.
How to uninstall Signature 365 from your Microsoft 365 tenant
Remove Signature 365 by disabling transport rules, connectors, and Outlook add-ins in the correct order.
How to use the Signature 365 migration wizard
Run the Signature 365 migration wizard on your Email Signature Manager server after Microsoft 365 integration.
Migrating to Signature 365 from Email Signature Manager
Migrate Email Signature Manager templates, campaigns, disclaimers, and rules to Signature 365 with the migration wizard.
Adding additional Teammates to manage Signature 365
Invite teammates and assign owner, administrator, or editor access in the Signature 365 portal.
Signature 365 development roadmap
Find the latest Signature 365 roadmap and planned features on the product updates site.
Signature 365 reliability and security
Explore Signature 365 security, certifications, availability, data protection, and Microsoft 365 integration safeguards.
Signature 365 required permissions
Review the Microsoft 365 and platform permissions needed to integrate and use Signature 365 features.
Signature 365 SMTP host list and IP whitelist
Find regional SMTP hosts and IP addresses to whitelist for Signature 365 server-side mail flow.
Signature 365 system requirements
Check supported Microsoft 365 plans, directories, servers, and Outlook clients for Signature 365.
Signing up for a Signature 365 account
Create a Signature 365 trial account and choose the data region during registration.
Upcoming features
See where to track upcoming Signature 365 features and release plans.
User Guides
Browse user guides for Signature 365 add-ins across Outlook desktop, web, and mobile.
Applying Signatures to users and groups
Create priority-based rules to apply Signature 365 templates to users, groups, or attribute-based selections.
Using two-factor authentication with a Signature 365 admin account
Enable two-factor authentication individually for Signature 365 administrator and editor accounts.
What types of messages are supported
See which message types Signature 365 can sign and which exceptions are excluded.