How do I stop employees from changing their email signature?
To stop employees editing or removing their email signature, deploy it server-side and re-apply it on a schedule so any manual change is overwritten. Siggly enforces approved signatures across Google Workspace and Microsoft 365, so every email leaves with the correct, on-brand, compliant signature.
Enforce Signatures Employees Can't Break
Server-Side Enforcement
Signatures are applied through the Gmail and Microsoft Graph APIs, not left to employees to configure — so they can't be skipped.
Overwrite Manual Changes
If someone edits or deletes their signature, Siggly restores the approved version on the next sync automatically.
Lock Brand Elements
Keep logo, colors, disclaimer, and layout fixed while still auto-filling each person's name, title, and contact details.
Audit Every Change
A full audit log records signature changes and deployments — useful for compliance and security reviews.
Why "please use this signature" never works
Relying on employees to set their own signature guarantees inconsistency: outdated titles, missing disclaimers, rogue fonts, and removed banners. Native Gmail and Outlook let each person edit their signature freely, so there is no way to enforce a standard.
Siggly makes signatures a managed asset. Admins control the template centrally, deployment happens server-side, and enforcement re-applies the approved signature whenever someone drifts — so compliance and branding hold across the whole organization.