Outlook signature manager

Outlook-safe email signatures for the whole company.

Outlook mangles modern HTML — divs collapse, background colors disappear, images stretch. SignatoryGrid ships table-based signatures validated in every Outlook version so your team looks consistent everywhere.

Why Outlook needs a special signature format

Outlook desktop uses Microsoft Word to render mail. That means CSS flexbox, grid, custom fonts, and background images silently fail. Signatures built with modern CSS look great in Gmail and destroy themselves in Outlook.

SignatoryGrid renders signatures as inlined-style HTML tables — the format Outlook's rendering engine actually understands. Logos are hosted at absolute URLs. Colors are hex. Fonts fall back cleanly to Arial or Calibri.

How to add a signature to Outlook

  1. Open the employee's SignatoryGrid claim link.
  2. Click Copy HTML signature.
  3. In Outlook (desktop), go to File → Options → Mail → Signatures.
  4. Click New, name the signature, then paste into the editor.
  5. Assign it as the default for new messages and replies, then click OK.

On Outlook for the web: click the gear → View all Outlook settingsMail → Compose and reply, then paste into the signature editor.

Tested clients

  • Outlook 2016 (Windows)
  • Outlook 2019/2021
  • Outlook for Microsoft 365
  • Outlook.com
  • Outlook Mobile (iOS/Android)
  • New Outlook for Windows