# SigHQ > SigHQ is a publication about email signatures — covering IT deployment, GDPR compliance, Microsoft 365 integration, and brand management for IT admins and developers. ## Key pages - [Home](https://sighq.app/): Latest posts and overview - [Archive](https://sighq.app/archive): Full chronological post archive - [Search](https://sighq.app/search): Search posts and browse all topics by tag - [About](https://sighq.app/about): About SigHQ ## Topic hubs - [Email Signatures](https://sighq.app/tags/email-signatures): Guides on professional signature design, legal requirements, and central management - [Microsoft 365](https://sighq.app/tags/microsoft-365): Centralised Deployment, mail flow rules, Outlook add-ins, and Exchange Online - [GDPR](https://sighq.app/tags/gdpr): UK GDPR compliance for email signature tools and data processor obligations - [IT Admin](https://sighq.app/tags/it-admin): Practical IT admin guides for deploying and managing email signatures at scale - [Outlook](https://sighq.app/tags/outlook): Classic Outlook, new Outlook for Windows, and COM vs Office add-in architecture ## Content areas - Deployment architecture: server-side injection vs Outlook add-in - Microsoft 365 and Exchange Online integration - GDPR and data processing agreements for signature tools - Brand consistency and email signature governance - Legal compliance: Companies Act 2006, FCA disclosure requirements - Tool pricing comparisons and vendor analysis