Server-Side Mode Signature Configuration
Sigsync Office 365 Email Signature Manager provides multiple ways to manage email signatures—Server Mode, Client Mode, or a Centralized Mode that combines both. Administrators can choose the method that best fits their organization’s workflow, security requirements, or branding needs. However, Centralized Mode (Server + Client) is the recommended approach, as it provides the greatest flexibility and ensures signatures are always applied—whether users send emails from desktop, mobile, or web clients.
This page explains the Server-Side Mode, where signatures are applied automatically at the server level. In Server Mode, all outgoing messages are securely routed through Sigsync’s Azure servers, and the signature is added during the mail flow process. Because the signature is applied after the email is sent, it will not appear while composing, but it will be visible to recipients once the message is delivered.
Administrators can also enable the ‘Signature in Sent Items’ option within Sigsync to ensure users see the final signature in their Sent folder. Server Mode requires no add-ins or user action, maintains centralized control, and guarantees consistent branding across all email clients—including Outlook, OWA, Gmail, mobile apps, and other platforms.
Steps to Configure Server Mode Signatures:
- Login to the Sigsync Dashboard
- Navigate to the ‘Manage Signatures’ > ‘Manage Tenants’ tab.
- Click on ‘Pending’ in the Configuration column, and select the ‘Server Mode’.
- Click ‘Authorize’ to proceed.
- Authenticate using your Office 365 Global admin account.
Set senders
Select the senders for signature configuration. You can choose from the following options:
- All users / groups
This option lets you apply signatures to every user in your Microsoft 365 tenant.
- Specific groups:
This option lets you apply only to the members of your Office 365 Azure Active Directory groups (Example: ‘Sales’, ‘HR’, or ‘Support’ etc.)
- Click ‘Choose Groups’.
- Select the required group and click ‘Ok’ to proceed
- The selected AD groups will be displayed. To remove a group from the list, click the ‘x’ icon in its corresponding row. Click ‘Continue’.
- Click the ‘Configure’ button to proceed with the Sigsync signature configuration.
- The signature configuration takes a couple of minutes to complete.
- The server-side configuration is now complete. Click the ‘Manage Signature’ button to create and manage your email signature templates.
See Also:
Streamline Email Signature Management with a Free On-demand Demo from Sigsync
Sigsync email signature service provides effortless, centralized signature management for Office 365 and Exchange. Our team can assist you in quickly setting up company-wide signatures. Request a free on-demand demo to see how Sigsync can simplify your email signature management process.










