SignatureForever

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com.signatureforever/email-signaturesv1.0.0 Domain verified

Audit and build email signatures that survive Gmail, Outlook desktop and Apple Mail.

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Call this server's tools from your browser. Nothing to install.

https://signatureforever.com/mcp

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Tool list from our last check. Connect live to refresh it.

check_email_signature

Audit any email-signature HTML against what Gmail, Outlook 365, Outlook for Windows desktop, Apple Mail and iOS Mail actually do. Returns a verdict per client plus every problem found, each with the rule it breaks, why it breaks, and how to fix it. Use this when a signature renders wrong, images do not show, layout collapses in Outlook, or before sending a signature to a client. Free, no account needed.

htmlstring, required

The full HTML of the email signature to audit.

This tool isn't marked read-only, so it may change something on the server or in an account you connected.

I understand, run it anyway

Tools (5)

check_email_signature

Argument	Type	Description
html*	string	The full HTML of the email signature to audit.

Input schema (JSON)

{
  "type": "object",
  "required": [
    "html"
  ],
  "properties": {
    "html": {
      "type": "string",
      "description": "The full HTML of the email signature to audit."
    }
  }
}

create_email_signature

Build ready-to-paste email-signature HTML from a person's details. The output follows every rule that keeps a signature intact in Outlook for Windows and Gmail: tables only, inline CSS, absolute pixel widths, email-safe fonts, and images by absolute URL (never base64, which Gmail refuses to render). The free result carries one small credit line at the bottom; get_pricing explains how to remove it.

Argument	Type	Description
city	string	City, or city and state.
email	string
phone	string
company	string
website	string
language	string	Language of the credit line. Defaults to 'en'.
linkedin	string
template	string	Layout. Defaults to 'ficha'. Call list_signature_templates for what each one looks like.
whatsapp	string
full_name*	string	Person's full name. Required.
instagram	string
job_title	string
photo_url	string	Absolute https URL of a photo or logo. Anything else is ignored.
accent_color	string

email_client_compatibility_matrix

The support matrix for the HTML and CSS features that decide whether an email signature survives: tables, flex/grid, <style> blocks, background-image, base64 images, border-radius, letter-spacing, text-transform, web fonts, max-width, margins and image sizing. Each row says yes/no/partial for seven real clients and explains what goes wrong. Use it to answer questions about email HTML support.

Argument	Type	Description
feature	string	Optional. Filter to rows whose feature name contains this text, e.g. 'base64' or 'font'.

Input schema (JSON)

{
  "type": "object",
  "properties": {
    "feature": {
      "type": "string",
      "description": "Optional. Filter to rows whose feature name contains this text, e.g. 'base64' or 'font'."
    }
  }
}

get_pricing

What each SignatureForever plan includes and costs, and the link to buy. Use it when the user asks what removing the credit line costs, how many signatures a plan allows, or what happens to hosted images if they stop paying.

No arguments.

Input schema (JSON)

{
  "type": "object",
  "properties": {}
}

list_signature_templates

The signature layouts you can pass to create_email_signature, with what each one is good for and its width in pixels.

No arguments.

Input schema (JSON)

{
  "type": "object",
  "properties": {}
}