SigHQ is an email signature management platform built exclusively for Microsoft 365. It gives IT and marketing teams a single place to design, manage, and deploy consistent email signatures to every employee — without touching individual Outlook settings.
Unlike most email signature tools, SigHQ uses an Office add-in architecture: signatures are injected directly into Outlook at compose time, meaning email content never passes through a third-party server. For organisations with GDPR obligations or data sovereignty requirements, this is a meaningful architectural difference.
Who it's for
SigHQ is designed for B2B organisations of 50–250 employees running Microsoft 365. It serves the key stakeholders who care about email signatures for different reasons: IT admins who need a clean, compliant deployment; marketing teams who need consistent branding across every outbound email; and compliance or legal teams who need guaranteed disclaimer coverage with an audit trail.
Key capabilities
* Centralised template management: create and publish signature templates from a web-based admin portal; changes propagate to all users automatically
* Role-based signature assignment: assign different signatures by team, role, department, or individual user
* Compose-time injection: signatures appear in Outlook before the email is sent, so senders see exactly what recipients will receive
* Microsoft 365 Centralised Deployment: distributed via the M365 admin centre — no end-user installation required
* Privacy-first architecture: email content never leaves Microsoft infrastructure; no relay, no server-side processing
What makes it different
Most email signature tools route outbound email through their own cloud infrastructure to append the signature after sending. SigHQ does not. Signatures are pre-rendered and delivered via CDN, injected at compose time using Microsoft's own Office.js API. The result is a cleaner GDPR story, no relay latency, and no third-party data processing agreement required for email content.
