Integrations

Works with the mail you already send

Signature Foundry produces the markup; your mail platform delivers it. There is no agent to install and nothing sitting between you and your mail server.

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Mail clients

Step-by-step install guides ship inside the app for every one of these.

Gmail & Google Workspace

Paste into the signature box, or roll out centrally across the domain.

Outlook & Microsoft 365

Web, Windows and Mac. We tell you where Word rendering will square off your corners.

Apple Mail

Including the “always match my default font” setting that quietly breaks most signatures.

Thunderbird

Paste the raw HTML into the signature field with “Use HTML” ticked.

Helpdesks

Zendesk, Front and Help Scout take the HTML export directly in source view.

CRMs

HubSpot, Salesforce and Pipedrive accept the same markup in their signature fields.

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For the people who own the mail server

The output is deliberately boring: tables, inline styles, no classes, no stylesheet, no JavaScript. That is what makes it safe to drop into a server-side template or a transport rule.

  • No agent, no endpoint software, no mailbox permissions
  • Deterministic markup — the same input always renders the same output
  • A documented PHP helper and REST API for your own automation
  • Directory-sync and SSO handoff points on the Platform plan
Read the security notes

If it can render an email, it can render this.

Try it against your own mail client before you commit to anything.

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