SigHQ
Signals, perspectives, and writing on the subject of email signatures.
- Dash, Dash, Space: A Short History of the Email Signature Delimiter The two hyphens and a space before every email signature have a precise, documented origin — including an RFC that became the de facto standard 16 years before it was formally published.
- UK Email Footer Legal Requirements: A Sector-by-Sector Reference What UK law actually requires in an email footer for limited companies, FCA-regulated firms, solicitors, and registered charities — with quick-reference templates.
- Why Email Signatures Matter More Than Ever Email has become the serious channel. As casual conversation moved to Teams and Slack, every email now carries more weight — and what sits at the bottom of it matters more than you think.
- The Best Email Signature Designs for 2026 (And Why Most 'Best Of' Lists Don't Survive Outlook) Most email signature design galleries show layouts that break the moment they hit Outlook. Five archetypes that actually render, and the mistakes that sink the rest.
- CodeTwo Alternatives: An Honest Comparison for Microsoft 365 and Google Workspace Teams (2026) CodeTwo is one of the highest-rated email signature tools for Microsoft 365 - but it's M365-only and still server-side. Compare Exclaimer, Letsignit, Rocketseed and WiseStamp.
- How to Set Up a Company-Wide Email Signature for All Employees in Microsoft 365 A step-by-step guide to applying one email signature to every employee in Microsoft 365 — Exchange mail flow rule setup, personalisation tokens, limitations, and alternatives.
- Email Signatures for HR Teams: The Internal Comms Channel You're Already Paying For New joiners go days without a compliant signature, recruiter signatures miss open roles. How HR teams can use email signatures as an internal comms channel.
- How to Turn Every Sales Email Into a Conversion Touchpoint (Without Asking Your Reps to Do Anything) Sales reps send 80+ emails a day to prospects. Here's how RevOps can turn every signature into a conversion touchpoint without touching anyone's laptop.
- New Outlook for Windows and Email Signatures: What IT Admins Need to Know Before Migrating Classic Outlook and new Outlook use incompatible add-in models. If your signature tool relies on a COM add-in, it will not work after migration.
- The Real Cost of Inconsistent Email Signatures for B2B Companies A 100-person company sends over a million outbound emails a year. Inconsistent signatures represent a measurable brand problem at significant scale.
- WiseStamp Alternatives for Business Teams: What to Consider in 2026 WiseStamp's browser-extension model is increasingly blocked by IT departments, and its product focus has narrowed since the vCita acquisition. Here's what business teams need instead.
- Why Your Team's Emails All Look Different (And What to Do About It) Your company sends thousands of emails a day. If half of them look different from the other half, that's a brand consistency problem — and it has a simple structural cause.
- Email Signature Branding: How to Turn Every Company Email Into a Consistent Brand Asset How marketing managers can turn company email signatures into a consistent brand channel — design best practices, common consistency issues, and fixes.
- Email Signature Tools and GDPR: Server-Side vs Add-In Architecture Explained What data each email signature architecture processes, what a compliant DPA must cover, and what ‘emails never leave Microsoft infrastructure’ means.
- Email Signature Compliance for UK Businesses: What the Law Actually Requires (2026) UK law requires limited companies to include four specific details on every external email. What the Companies Act 2006 and FCA rules require.
- Email Signature Tools and GDPR: What Your DPO Needs to Know (2026) Email signature tools often route outbound email through third-party servers. Here's what UK GDPR Article 28 requires and what your DPA must cover.
- Does Your Email Signature Tool Route Your Emails Through Third-Party Servers? (A GDPR Question Worth Asking) Many email signature tools route your emails through their own servers. Under UK GDPR that makes them a data processor. Here's what to ask.
- Exclaimer Alternatives: An Honest Comparison for Microsoft 365 Teams (2026) Looking for Exclaimer alternatives? Compare CodeTwo, Letsignit, Rocketseed and WiseStamp - honest assessment of pricing, deployment models and who each tool suits.
- Email Signature Software Pricing: Every Major Tool Compared (2026) Email signature management software costs $0.81–$3.50 per user per month. Compare Exclaimer, CodeTwo, Letsignit, WiseStamp and Rocketseed on pricing.
- Email Signature Management for Microsoft 365: Server-Side vs Add-In — What's the Difference? Server-side and add-in email signature tools differ significantly on GDPR, mobile support, and the compose experience. What IT admins need to know.
- Centralised Email Signatures in Microsoft 365: The Complete Guide (2026) Everything IT admins need to know about centralised email signatures in Microsoft 365 — native options, their limits, and how third-party tools compare.
- How to Manage Email Signatures Across a Company: What IT Admins Actually Need to Know Standardising company email signatures? This guide maps deployment options, technical tradeoffs, and questions to ask before choosing a tool.
- Why Designing HTML Emails for Outlook Is Still a Nightmare in 2026 (And How to Survive It) Outlook HTML email rendering was broken by design — here's why the Word engine ruined everything in 2007, what still breaks in 2026, and how to code around it.
- The History of Email Signatures: From ARPANET Footnotes to Corporate Branding Tools From ARPANET footnotes to legal disclaimers and brand assets — how a simple email sign-off became one of IT's most underestimated management problems.
Email signatures in M365 are broken. We're fixing that.
We're not ready to share the details yet — but if you manage email, IT, or communications for a mid-sized Microsoft 365 organisation, this is for you.
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