# Signatoro > One email signature for humans and AI agents. Signatoro is the agentic email signature platform: save your signature once, and your people and every AI agent you connect use the same one. Each person pastes their finished signature into their own mail app once (on Company it arrives in their invitation), and AI assistants and agents fetch it at send time over MCP or the API, signing as the person or as themselves with the sender's saved details. Mail keeps going through the company's own mail servers. Every doc, blog post, comparison, compliance guide, template and agent page below is also available as Markdown by appending `.md` to its URL, and the links below point there. The full contents of all of them, in this order, are in one file at https://signatoro.com/llms-full.txt. Free for one person. Company is a flat monthly price by company size - $9 up to 5 people, $19 up to 15 and $49 up to 50 - with extra members at $1.50 a month each as a team grows. ## Product - [Signature generator](/): build a signature and copy it into Gmail, Outlook or Apple Mail - [Free email signature generator](/free-email-signature-generator): build and copy a signature for free, without an account - [Company email signature](/company-email-signature): one brand for everyone, one flat price by size - [Zoho Mail integration](/signatoro-signature-for-zoho-mail): one-click install into Zoho Mail that updates itself, for a person or a whole company - [Features](/features): everything Signatoro does, and which plan has it - [Pricing](/pricing): the Free and Company plans, and how the flat price compares to per-seat tools - [FAQ](/faq): setup, billing, cancellation, deliverability and automated-mail questions - [Documentation](/docs): install guides per mail client, CRM, help desk and automation tool, plus short links and UTM tracking - [Blog](/blog): guides on email signatures for people, teams and the AI agents that send for them, with an RSS feed at /blog/rss.xml - [MCP server](/docs/install-signature/agent/mcp.md): connect Claude, ChatGPT or any MCP client to https://signatoro.com/mcp to fetch the signature, before every send once the email signature rule is in its instructions (the person's or an AI assistant's, with the sender's saved details), choose among signatures, make a signature, and manage a company's people - [Email signature compliance](/email-signature-compliance): what CAN-SPAM, GDPR, PECR and UK company law ask of an email footer, and when email an AI writes or sends must disclose it (EU AI Act Article 50) - [Free tools](/tools): the free signature generator and the email signature disclaimer kit ## AI agents and email How AI agents send email, why their mail has no signature and how to add one, the disclosure rules, and the news: - [Email signatures for AI agents](/email-signatures-for-ai-agents): each agent fetches its signature at send time over MCP or the REST API, signing as you or as itself - [One email signature for multiple AI agents](/email-signatures-for-ai-agents/one-signature): Squad, AgentMail and an API-built agent fetching the same company signature - [AgentMail email signature](/email-signatures-for-ai-agents/agentmail): a signature on mail an AgentMail inbox sends, fetched at send time - [Nylas agent email signature](/email-signatures-for-ai-agents/nylas-agent-accounts): a signature on mail a Nylas Agent Account sends, fetched at send time - [OpenAI dots email signature](/email-signatures-for-ai-agents/openai-dots): the person's own signature on mail an OpenAI dot sends through a connected account - [Squad email signature](/email-signatures-for-ai-agents/squad): a signature on mail a Squad teammate sends, fetched at send time - [Viktor email signature](/email-signatures-for-ai-agents/viktor): a signature on mail a Viktor inbox sends, over a custom MCP connection - [ChatGPT email signature](/chatgpt-email-signature): the company signature on email ChatGPT, or an agent built on it, sends - [Claude email signature](/claude-email-signature): the company signature on email Claude, or an agent built on it, sends - [Email signature MCP](/email-signature-mcp): one MCP URL that gives each agent its current signature: the person's own or the agent's - [Email signature API for AI agents](/email-signature-api.md): set a signature up once, fetch it from any agent or email workflow, update it in one place - [Grok email signature](/grok-email-signature.md): your signature on email Grok, the xAI chatbot, sends from Gmail or Outlook - [Grok Bot email signature](/grok-bot-email-signature.md): your signature on email a Grok Bot sends from Gmail, Outlook or the agent address you claim at mail.grokbot.com - [Meta Muse email signature](/meta-muse-email-signature.md): your signature on email Meta Muse sends from your Gmail, after you approve - [OpenClaw email signature](/openclaw-email-signature.md): your signature on email OpenClaw sends from your Gmail or an AgentMail inbox - [Hermes Agent email signature](/hermes-agent-email-signature.md): your signature on email Hermes Agent sends from your Gmail or from its own mailbox - [Lindy email signature](/lindy-email-signature.md): your signature on email Lindy sends or drafts from your Gmail or Outlook - [Fyxer email signature](/fyxer-email-signature.md): your signature on the replies Fyxer drafts in Gmail and Outlook - [Coding agents email signature](/coding-agents-email-signature.md): your signature on email Claude Code, Cursor, Codex, Gemini CLI and other coding agents send through a mail MCP server - [Cue email signature](/cue-email-signature.md): a signature for every email a Cue agent sends from its own address - [Manus email signature](/manus-email-signature.md): your signature on email Manus sends from your Gmail or Outlook, in a browser or through its connectors - [Notion agents email signature](/notion-agents-email-signature.md): your signature on email Notion Custom Agents draft and send from your Gmail or Outlook - [Poke email signature](/poke-email-signature.md): your signature on email Poke sends from your Gmail, with Signatoro as a custom MCP integration - [Shortwave email signature](/shortwave-email-signature.md): your signature on email and AI drafts in Shortwave, synced from your default Gmail signature - [Microsoft Agent 365 email signature](/microsoft-agent-365-email-signature.md): your company signature on email an Agent 365 agent sends from its own Microsoft 365 mailbox - [Gemini email signature](/gemini-email-signature.md): your signature on email Gemini writes in Gmail or sends from Workspace apps - [Copilot email signature](/copilot-email-signature.md): your signature on email Microsoft 365 Copilot drafts, sends or sends from an agent mailbox - [Do you have to disclose that an email was written by AI?](/email-signature-compliance/ai-email-disclosure.md): what the rules generally ask when AI writes or sends your email - [EU AI Act Article 50 and email](/email-signature-compliance/eu-ai-act-article-50-email.md): what Article 50 asks of AI-generated email, and from when - [Why emails your AI agent sends have no signature](/blog/ai-agent-email-no-signature.md): the one cause and the fix for every tool - [Remove "This email was sent automatically with n8n"](/blog/remove-sent-automatically-with-n8n.md): turn off the n8n footer and add your signature - [AI disclosure statement examples](/blog/ai-disclosure-statement-examples.md): 20 copy-and-paste lines for agent mail, AI drafts, outreach and support - [Should your AI assistant sign emails as you?](/blog/should-ai-sign-emails-as-you.md): sign as you, on behalf of, or as an AI, with a decision table - [Can an email your AI agent sends bind you?](/blog/ai-agent-email-legally-binding.md): what the court cases say about signature blocks and software agents - [AI and email: answers to common questions](/blog/ai-email-faq.md): short answers on sending, signatures, disclosure and spam - [Grok Bot can send email from Gmail and Outlook](/blog/grok-bot-email.md): what xAI shipped and how to keep your signature on every email - [AI agents and email: a timeline (2024-2026)](/blog/ai-agents-email-timeline.md): every launch, sender rule and ruling, dated and sourced ## Signature API for agents An agent fetches the signature at send time and appends it to the email itself: - REST: `GET https://signatoro.com/api/v1/signature` with `Authorization: Bearer sig_live_...` returns the signature as html and text, the sender's details, and the append rules; `?mode=short` for the short cut, `?signature=` for one of the person's AI assistants - [OpenAPI 3.1 document](/openapi.json): the REST endpoint, its parameters, responses and errors - MCP: https://signatoro.com/mcp (streamable HTTP; OAuth, or a Signatoro API key as the bearer token for the read tools), set up per client in the [MCP guide](/docs/install-signature/agent/mcp) - Skill: https://github.com/BlastraIO/signatoro-email-signature-skill, or the copy-paste AGENTS.md / CLAUDE.md rule in the [agent guide](/docs/install-signature/agent) ## Agent docs - [Give your signature to an AI agent](/docs/install-signature/agent.md): the signature API, an agent skill and a copy-paste AGENTS.md rule, and a guide per agent, from Claude and ChatGPT to n8n and Zapier - [Connect Claude or ChatGPT to Signatoro with MCP](/docs/install-signature/agent/mcp.md): add the MCP server to Claude, Claude Code, ChatGPT or Grok - [Signature on emails Claude sends](/docs/install-signature/agent/claude.md): the Signatoro connector, the Gmail and Microsoft 365 connectors, Claude for Outlook, Claude in Chrome and Claude Code - [Signature on emails ChatGPT sends](/docs/install-signature/agent/chatgpt.md): the Signatoro MCP connector, custom instructions, your mail app, and the OpenAI API - [Signature on emails Gemini writes](/docs/install-signature/agent/gemini.md): Help me write, the Gemini app and Gemini Spark - [Signature on emails Copilot writes](/docs/install-signature/agent/copilot.md): Outlook drafts and Copilot Chat sends, without a second sign-off - [Signature on emails Grok sends](/docs/install-signature/agent/grok.md): Grok's Gmail and Outlook connectors, Grok for Outlook, a custom MCP connector, and the xAI API - [A signature for each of your Grok Bots](/docs/install-signature/agent/grok-bot.md): one Signatoro AI assistant and API key per Bot, from Gmail, Outlook, mail.grokbot.com and its plus aliases, or AgentMail - [Signature on emails AI browser agents send](/docs/install-signature/agent/browser-agents.md): Comet, Claude in Chrome, ChatGPT and Manus in your real inbox - [Gmail MCP and Outlook MCP signatures](/docs/install-signature/agent/gmail-outlook-mcp.md): get your signature on email sent through the official mail MCP servers - [Send email with a signature through the Gmail API](/docs/install-signature/agent/gmail-api.md): fetch it from Signatoro per send, or read it with sendAs; keep images working - [Add an Outlook signature with Microsoft Graph](/docs/install-signature/agent/microsoft-graph.md): fetch each person's signature from Signatoro, embed the logo or use a mail flow rule - [Gmail signature in Google Apps Script](/docs/install-signature/agent/apps-script.md): MailApp and GmailApp sends, with the Gmail advanced service or UrlFetchApp - [Signature on emails n8n, Zapier and Make send](/docs/install-signature/agent/automations.md): how each tool adds one, and how to keep it current - [Add your Outlook signature in Power Automate](/docs/install-signature/agent/power-automate.md): four ways to sign "Send an email (V2)", kept current from the API - [Signature on emails a Nylas agent sends](/docs/install-signature/agent/nylas.md): fetch it from Signatoro and pass its signature_id on every send - [Signature on emails sent with Resend, SendGrid, Postmark or SMTP](/docs/install-signature/agent/email-apis.md): fetch each person's or agent's signature from Signatoro on every send - [Use Signatoro in Base44 apps](/docs/install-signature/agent/base44.md): the MCP server while you build, and the OpenAPI spec as a custom integration that a backend function calls before SendEmail ## Features - An MCP server and API for tools and assistants (Free and Company) - AI assistants that sign as you or as themselves (Free and Company) - Company AI agents in the company brand (Company) - Five layouts, one accent color, a photo or logo (Free and Company) - A color check for light and dark mode (Free and Company) - Dark mode preview (Free and Company) - A review badge or a booking button (Free and Company) - Copy, copy as HTML or text, download, or send yourself a test (Free and Company) - One saved signature (Free and Company) - A step-by-step guide for every mail app (Free and Company) - One-click install into Zoho Mail (Free and Company) - One logo, layout, color, font, review badge and booking button that every signature follows (Company) - Change it once and everyone gets the new signature by email (Company) - See who has installed it (Company) - No "Get my signature" link, for anyone (Company) - Invitations with the signature already in them (Company) - PNG export and unlimited API requests, for everyone (Company) - Change size in the app (Company) - A compliance footnote on every signature (Up to 15 plan or larger) - Footnote templates (Up to 15 plan or larger) - Footnote history (Up to 50 plan) - AI disclosure lines for agent signatures (Free and Company) - Plain-language compliance guides (Free and Company) ## Choosing an email signature tool A guide sorted by use case (Companies using AI agents, Individuals, Small companies, Microsoft users, Gmail users, Zoho users and Enterprise), with what each group values, ranked picks and dated sources. Signatoro publishes it and ranks itself only where it fits: - [The best email signature software, by use case](/best-email-signature-software.md) ## Signatoro vs specific alternatives Each page below states both products' facts side by side, checked directly against the competitor's own site, with sources and dates cited: - [Signatoro vs Exclaimer](/compare/exclaimer-alternative.md) - [Signatoro vs WiseStamp](/compare/wisestamp-alternative.md) - [Signatoro vs Newoldstamp](/compare/newoldstamp-alternative.md) - [Signatoro vs CodeTwo](/compare/codetwo-alternative.md) - [Signatoro vs MySignature](/compare/mysignature-alternative.md) - [Signatoro vs Letsignit](/compare/letsignit-alternative.md) - [HubSpot email signature generator alternative for teams](/compare/hubspot-email-signature-generator-alternative): HubSpot's free single-person generator beside Signatoro Free and Company ## Contact - [Contact](/contact) ## All documentation - [How to make an email signature](/docs/how-to-make-an-email-signature.md): What to put in an email signature, what to leave out, how to make one in a minute, and how to get it into Gmail, Outlook or Apple Mail. - [How to add a review badge to your email signature](/docs/add-google-reviews-to-email-signature.md): Add a Trustpilot, Google Reviews or G2 rating badge to your email signature: where to find your review link, what to enter, and how it looks. - [How to add a Calendly link to your email signature](/docs/add-calendly-link-to-email-signature.md): Add a Calendly or Cal.com booking button to your email signature: how to set it up and how it renders in Gmail, Outlook and Apple Mail. - [How to add an email signature in Gmail, Outlook, Apple Mail and more](/docs/install-signature.md): How to add your email signature in Gmail, Outlook, Apple Mail, Yahoo, Proton, Zoho, Thunderbird and more mail apps, and for AI agents that send mail for you. - [How to add or change your email signature in Gmail](/docs/install-signature/gmail.md): Add, change or update your Gmail signature on desktop, Android and iPhone, including how to paste an HTML signature with a logo and links. - [How to change or add your email signature in Outlook](/docs/install-signature/outlook.md): Step by step: change, add or update your email signature in new Outlook, classic Outlook for Windows, Outlook on the web, Mac and mobile. - [Short links and UTM tracking in your email signature (Bitly, Rebrandly)](/docs/short-links-utm-email-signature.md): How to track clicks on the links in your email signature with UTM parameters, when a Bitly or Rebrandly short link helps, and which field of Signatoro, the agentic email signature platform, to paste it into. - [Signatoro for Zoho Mail: admin guide](/docs/install-signature/zoho-mail/admin.md): What the install of Signatoro, the agentic email signature platform, for Zoho Mail can access, what it writes, how it stores Zoho tokens, and how a person or an admin stops it. - [How to add a signature in new Outlook and Outlook on the web](/docs/install-signature/outlook-new.md): Add or change your email signature in new Outlook for Windows, Outlook.com and Outlook on the web, and fix signatures missing from replies or after a switch. - [How to add a signature in classic Outlook on Windows](/docs/install-signature/outlook-classic.md): Add or change your email signature in classic Outlook on Windows through File, Options, Mail, Signatures, and fix logos, replies and .htm signature files. - [How to add a signature in Outlook for Mac](/docs/install-signature/outlook-mac.md): Add or change your email signature in Outlook for Mac and legacy Outlook for Mac, set it for each account, and fix images and double-spaced lines. - [How to add a signature in the Outlook app on iPhone and Android](/docs/install-signature/outlook-mobile.md): Add an email signature to the Outlook app on iPhone and Android, remove "Get Outlook for iOS", set one per account, and see why desktop signatures stay behind. - [How to add a signature in Apple Mail on Mac](/docs/install-signature/apple-mail.md): Add or change your email signature in Apple Mail on macOS, keep its fonts and colors, and fix a signature you cannot select or a logo sent as an attachment. - [How to add an email signature on iPhone and iPad](/docs/install-signature/ios-mail.md): Add a formatted email signature to the Mail app on iPhone and iPad through a test email, set one per account, and fix a logo or formatting that will not stay. - [How to add a signature in Zoho Mail](/docs/install-signature/zoho-mail.md): Add your email signature to Zoho Mail, link it to your From address, turn it on for replies and the mobile app, and fix a logo that recipients cannot see. - [How to add a signature in Proton Mail](/docs/install-signature/proton-mail.md): Add your email signature in Proton Mail, set one for each address, and fix the usual problems: the mobile footer, lost formatting on Android, missing images. - [How to add a signature in Tuta Mail](/docs/install-signature/tuta.md): Add your email signature in Tuta Mail, formerly Tutanota, replace the free-plan default, and fix logos missing in Gmail, dark-mode text and plain-text mail. - [How to add a signature in Fastmail](/docs/install-signature/fastmail.md): Add your email signature in Fastmail, set one for each address, choose where it goes on replies, and fix a missing toolbar or a broken signature image. - [How to add a signature in mailbox.org](/docs/install-signature/mailbox-org.md): Add your email signature in mailbox.org webmail, set it as the default for new emails and replies, and fix plain-text signatures and the wrong alias signature. - [How to add a signature in Yahoo Mail](/docs/install-signature/yahoo-mail.md): How to add and change an email signature in Yahoo Mail on the web and in the Yahoo Mail app, and fix a missing logo or the Sent from Yahoo Mail line. - [How to add a signature in AOL Mail](/docs/install-signature/aol-mail.md): How to add and change an email signature in AOL Mail on the web, in the AOL app and in AOL Desktop Gold, with a logo added by web address when one is missing. - [How to add a signature in iCloud Mail on the web](/docs/install-signature/icloud-mail.md): How to add a signature to iCloud Mail on iCloud.com, why Apple keeps it plain text there, and where to set a signature with your logo for an iCloud address. - [How to add a signature in Titan Email](/docs/install-signature/titan-email.md): Add a signature in Titan Email webmail and the Titan app, set it for replies and forwards, and fix a Titan signature or logo that does not show up. - [How to add a signature in GoDaddy email](/docs/install-signature/godaddy-email.md): Add an email signature in GoDaddy Professional Email powered by Titan, Microsoft 365 from GoDaddy or the older Professional Email, and fix one that won't show. - [How to add an email signature in IONOS Webmail](/docs/install-signature/ionos-mail.md): Add your email signature in IONOS Webmail, make it the default for new emails and replies, keep its formatting, and fix it when it does not show up. - [How to add an email signature in Rackspace Email](/docs/install-signature/rackspace-email.md): Add your email signature in Rackspace Email webmail, turn it on for new emails, replies and forwards, link it to your address, and fix it when it goes missing. - [How to add an email signature in Roundcube webmail](/docs/install-signature/roundcube.md): Add your email signature in Roundcube, the webmail many cPanel hosts provide, switch it to HTML so the logo and formatting stay, and turn it on for replies. - [How to add a signature in Thunderbird](/docs/install-signature/thunderbird.md): How to add an email signature in Thunderbird: the steps per account and per address, the Use HTML box, missing images, replies and Thunderbird for Android. - [How to add a signature in eM Client](/docs/install-signature/em-client.md): How to add an email signature in eM Client: the six steps, a signature per account for new mail and replies, the phone app via QR code, and missing images. - [How to add a signature in Mailbird](/docs/install-signature/mailbird.md): How to add an email signature in Mailbird Classic and Mailbird Next, get it on replies, use more than one signature per account, and fix missing images. - [How to add a signature in Spark](/docs/install-signature/spark.md): How to add an HTML email signature in Spark on Mac, Windows, iPhone and Android, set it as the default per account, and fix a signature that is missing. - [How to add a signature in Superhuman](/docs/install-signature/superhuman.md): How to add your email signature in Superhuman for a Gmail or Outlook account, set it for replies, remove "Sent via Superhuman" and fix a missing logo. - [How to add a signature in HEY](/docs/install-signature/hey.md): HEY calls its email signature a Name Tag, and it takes text only. How to add one in HEY for your HEY address and for an outside address you send from. - [How to add a signature in Samsung Email on Android](/docs/install-signature/samsung-email.md): How to add your email signature to the Samsung Email app on a Galaxy phone or tablet, one account at a time, and what to expect from a signature with a logo. - [How to add a signature in Front](/docs/install-signature/front.md): How to add your email signature in Front as a personal or shared signature, make it the default for a channel, and fix broken images and lost formatting. - [How to add a signature in Zimbra webmail](/docs/install-signature/zimbra.md): How to add your email signature in Zimbra webmail, Modern or Classic, set it for new emails and replies, and fix the "maximum length" and missing image errors. - [How to add a signature in Missive](/docs/install-signature/missive.md): How to add your email signature in Missive with its HTML editor, link it to an alias, choose it per email, and fix images that arrive as attachments. - [How to add an email signature in Pipedrive](/docs/install-signature/pipedrive.md): How to add your email signature to emails sent from Pipedrive, set the default, switch it per email, and add it to automated emails. - [How to add an agent signature in Zendesk](/docs/install-signature/zendesk.md): How to add your agent signature in Zendesk, set the common signature for all agents, add a logo with Markdown, and why a signature is missing. - [How to add an agent signature in Freshdesk](/docs/install-signature/freshdesk.md): How to add your agent signature in Freshdesk, set it for another agent as an admin, add a hosted logo, and paste an HTML signature. - [How to add a signature in Help Scout](/docs/install-signature/help-scout.md): How to add an email signature to a Help Scout inbox with the HTML editor, fill in each teammate's name with variables, and host the images. - [How to add an email signature in Intercom](/docs/install-signature/intercom.md): How to set the Intercom email signature for your team and for Fin, fill in each teammate's details with attributes, add a logo, and why a signature is missing. - [How to add an email signature in Gorgias](/docs/install-signature/gorgias.md): How to add an email signature to a Gorgias email integration, fill in each agent's details with agent variables, and add a signature to AI Agent emails. - [How to add an email signature in Salesforce](/docs/install-signature/salesforce.md): How to add your email signature in Salesforce Lightning Experience, add a logo, why a signature goes missing, and which signature Agentforce Engagement emails carry. - [How to add an email signature in Artisan](/docs/install-signature/artisan.md): How to add your email signature to the emails Artisan's AI BDR Ava sends for you, paste it as HTML, set it for a teammate, and why a sender shows missing info. ## All blog posts - [Email footer examples: 20 company and legal footers you can copy](/blog/email-footer-examples.md): 20 email footer examples for companies: legal lines, addresses, disclaimers and confidentiality notices. Copy-paste HTML that works in Gmail and Outlook. - [Case study: one signature for every inbox and AI assistant at Blastra](/blog/case-study-blastra.md): Blastra sends external email from several accounts, one signature per use case, much of it through AI assistants. With Signatoro they share one brand, and the assistants fetch the right signature for each email. - [Email signature policy: what employees can add, and what the TD lawsuit shows](/blog/email-signature-policy.md): A TD Insurance executive is suing over her firing after she added a Christian line to her email signature. What a company email signature policy should cover - personal identifiers, pronouns, religious lines - with a sample policy you can copy. - [Email signature software pricing compared: flat vs per-seat (2026)](/blog/email-signature-software-pricing.md): What Exclaimer, WiseStamp, CodeTwo, Newoldstamp, Opensense, MySignature and Letsignit cost in 2026, read from each vendor's pricing page, with worked costs for a 10- and 25-person team. - [How to standardize email signatures across a small team](/blog/standardize-email-signatures.md): A step-by-step way to give a small team one consistent email signature and footer, without IT or an add-in. Works in Gmail, Outlook and Apple Mail. - [Holiday out of office messages: examples, and how to set them in Gmail and Outlook](/blog/holiday-out-of-office-message.md): Holiday out of office message examples for Thanksgiving, Christmas and New Year 2026, with the steps to set an automatic reply in Gmail and Outlook. - [Nurse credentials order: how to list them in your email signature](/blog/nurse-credentials-order.md): The order ANCC publishes for nursing credentials, with examples for RNs, nurse practitioners and nurse leaders, and how to fit them into an email signature. - [Student email signature: what to include, with examples](/blog/student-email-signature.md): Student email signature examples for undergraduates and graduate students, built from what university career centers advise: name, school, major and graduation year. - [Teacher email signature: what districts ask for, with examples](/blog/teacher-email-signature.md): Teacher email signature examples for elementary, middle and high school, built from what school districts publish: name, title, school, district and contact details. - [Thanksgiving out of office messages: 40 templates, polite to pie-obsessed](/blog/thanksgiving-out-of-office-message.md): 40 Thanksgiving out of office messages to copy: professional, short, funny and warm, plus closure notices for customers and a holiday signature line. - [Two signatures on one email? Fixing duplicate sign-offs from AI and email clients](/blog/duplicate-email-signature-ai.md): Your email ends with two sign-offs or two signatures because the AI wrote one and Outlook, Gmail or your automation added another. The five causes, the instruction wording that stops it, and how to keep exactly one signature on every email. - [Signatoro is in Claude's connector directory](/blog/signatoro-claude-connectors-directory.md): Signatoro is listed in Claude's connector directory. Connect it and add the email signature rule to Claude's instructions, and every email Claude drafts or sends for you ends with your saved signature, while your company's AI agents sign as themselves. How to connect it in three steps. - [One email signature per AI agent, or one per person? How to give each agent its own identity](/blog/signature-per-ai-agent.md): When a team runs a sales agent, a support agent and a scheduling agent, each one needs its own name, a line that says it is an AI, and the person it acts for. How to name agents, why signatures drift between them, and how to set one up per agent. - [Email signature image not showing when an AI agent or automation sends it](/blog/ai-email-signature-images-missing.md): Your signature logo or photo goes missing when an AI agent, n8n, Zapier, Apps Script, the Gmail API or Microsoft Graph sends the email. The five causes, how hosted, inline and base64 images behave in Gmail and Outlook, and the fix for each sending path. - [One email signature across all your AI agents, even when you switch providers](/blog/one-email-signature-all-ai-agents.md): Running Claude, an n8n agent and an SDR agent that all send email? Keep the signature in one place that every agent fetches at send time, so it stays the same across agents and survives a change of AI provider. - [People and AI agents sending email: one company signature for both](/blog/people-and-ai-agents-one-company-signature.md): When your team and your AI agents both send email, set the brand once and let it reach every person's signature and every agent's. How Signatoro's Company plan does it, how the agents differ from people, and how the other approaches compare. - [Email signature for agent mailboxes: AgentMail, Nylas Agent Accounts, Grok Bot and SMTP](/blog/agent-mailbox-email-signature.md): An AI agent with its own mailbox sends through an API that adds no signature by itself. How AgentMail, Nylas Agent Accounts, Grok Bot's mail.grokbot.com address and plain SMTP handle signatures, and how to give each agent its own signature from one place. - [AI-written client email at broker-dealers and RIAs: FINRA and SEC rules that still apply](/blog/ai-email-financial-advisers-finra.md): FINRA says firms are responsible for communications 'regardless of whether they are generated by a human or AI technology'. What Rule 2210, Rule 3110 and SEC recordkeeping rules mean for AI-drafted and agent-sent client email, and what the signature has to carry. - [Stop your AI assistant from inventing your phone number, title or address in emails](/blog/ai-made-up-contact-details.md): AI assistants fill a signature block with a phone number, title or address they made up, or leave "[Your Name]" in the email. Real cases, why models guess, and five fixes: a real signature from a tool, instructions, a send-time check and review for legal mail. - [AI-drafted and AI-sent email at law firms: what ABA Formal Opinion 512 means for your signature block](/blog/ai-email-lawyers-aba-512.md): What ABA Formal Opinion 512, Florida Bar Ethics Opinion 24-1 and California's 2026 guidance on agentic AI say about lawyers using AI to draft and send email, and what that means for the signature block on every message. - [Zapier still using your old Gmail signature? Why it's cached and how to fix it](/blog/zapier-old-gmail-signature.md): You changed your Gmail signature and your Zaps keep sending the old one. Why Zapier holds on to it, the five-step fix, and fixes for a missing signature, a signature sent as an attachment in Outlook, and the two dashes above it. - [Why our AI agent's emails said "\[REDACTED\]" in the signature](/blog/ai-agent-email-signature-redacted.md): Our outreach agent fetched the right signature before every send, and nine emails still went out with "[REDACTED]" where the email address belonged. The agent retyped the signature into its send tool and its context masked the address. How to add the signature with code at send time, and check what was sent. - [Signatoro is in ChatGPT's plugin directory](/blog/signatoro-chatgpt-plugin.md): Signatoro is listed in ChatGPT's plugin directory. Install it, add the email signature rule to ChatGPT's custom instructions, and the emails ChatGPT drafts or sends for you end with your saved signature. How to install it in three steps. ## More guides and pages - [CAN-SPAM and your email signature: what actually goes where](/email-signature-compliance/can-spam-email-footer.md): CAN-SPAM's physical address and opt-out requirements apply to the commercial message, not to every personal reply signature. What the Act actually requires, and where. - [GDPR and email signatures: what "personal data" means here](/email-signature-compliance/gdpr-email-signature.md): Name, job title, direct phone number and photo in a signature are typically personal data under GDPR. What that does and does not require of a company. - [PECR and marketing email: identity, consent, and opt-out](/email-signature-compliance/pecr-marketing-email-signature.md): UK PECR requires clear identification and an opt-out on marketing email, with a 'soft opt-in' exception for existing customers. What that means for what a signature carries. - [UK company email signature requirements: trading disclosures](/email-signature-compliance/uk-company-email-signature-requirements.md): UK company law requires registered name, number, and office address on business email - readable in the message itself, not only behind a link. What the Regulations require. - [HIPAA email disclaimer myths: what a footer does and does not do](/email-signature-compliance/hipaa-email-disclaimer-myths.md): A confidentiality footer does not make an email HIPAA-compliant. What HIPAA actually requires for email carrying PHI, and where a disclaimer fits. - [FINRA email disclaimer myths: what Rule 2210 actually asks for](/email-signature-compliance/finra-email-disclaimer-myths.md): Pasting a long disclaimer block is not what FINRA Rule 2210 requires. Supervision, record-keeping, and fair, balanced content are what actually matter. - [Lawyer Signature Block Template | Signatoro](/email-signature-templates/law-firm.md): A lawyer signature block template for the whole firm: each attorney's name, title and headshot over one confidentiality footnote, with the rules cited. - [Realtor Email Signature Template | Signatoro](/email-signature-templates/real-estate.md): A realtor email signature template with each agent's headshot, the brokerage name and logo, and a shared review badge or booking button, state rules cited. - [Doctor, Dentist and Nurse Email Signature Templates](/email-signature-templates/healthcare.md): Email signature templates for clinics: each doctor's, dentist's and nurse's credentials in the right order over one practice footnote, with HHS rules cited. - [University Email Signature Template | Signatoro](/email-signature-templates/education.md): A university email signature template: one layout and logo for faculty and staff, each with their own name, title and pronouns, following published guidelines. - [Financial Advisor Email Signature Template | Signatoro](/email-signature-templates/financial-services.md): A financial advisor email signature template for the whole firm: each advisor's name, title and license line over one disclosure footnote, rules cited. - [Accountant and CPA Email Signature Template | Signatoro](/email-signature-templates/accounting.md): An accountant and CPA email signature template for the firm: CPA and EA titles shown the way state boards and Circular 230 allow, and the 2014 disclaimer rule. - [Construction Company Email Signature Template | Signatoro](/email-signature-templates/construction.md): A construction company email signature template: the contractor license number on every signature at once, each person's name and title, state rules cited. - [CEO and Founder Email Signature Template | Signatoro](/email-signature-templates/ceo.md): A CEO and founder email signature template: the same company signature as the team's, with the executive assistant's version and the UK rules for directors. - [Church and Pastor Email Signature Template | Signatoro](/email-signature-templates/church.md): A church email signature template for pastors and staff: one layout and logo, service times as the shared line, and what IRS guidance says about church email. - [Photographer Email Signature Template | Signatoro](/email-signature-templates/photographer.md): A photographer email signature template: your headshot, a booking button or review badge, and a copyright line in the form the US Copyright Office describes. - [Recruiter Email Signature Template | Signatoro](/email-signature-templates/recruiting.md): A recruiter and staffing email signature template: one equal opportunity line under every recruiter's signature, with the federal contractor rules for 2026. - [Happy Holiday Email Signature Templates | Signatoro](/email-signature-templates/holiday.md): Happy holiday email signature templates for Thanksgiving, Christmas and New Year: one seasonal line under every signature at the company, with 2026 dates.