Whether you run Microsoft 365, Google Workspace, Exchange, or custom SMTP, manage consistent, compliant email signatures at scale — from a single dashboard.
Instant Signer pulls user attributes directly from your directory so signatures are always accurate and up to date.
How deployment, mail flow, and device coverage work.
Yes. Instant Signer natively supports Microsoft 365, Google Workspace, Microsoft Exchange, and custom SMTP, all managed from one dashboard.
Only if you choose server-side stamping for absolute enforcement. You can also deploy client-side via the Outlook add-in or the Gmail API so email never changes its delivery path.
Yes. Server-side deployment applies signatures to every device — including mobile and webmail — because the signature is added in transit rather than in a single client.
Join 2,500+ companies turning email signatures into their most consistent, on-brand, and measurable channel.