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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.

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.

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.

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.

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.

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.

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.

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 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.

Sign as you, sign 'on behalf of', or sign as an AI: what recipients expect, who is responsible for what the AI sends, what the EU asks of AI agents, and a decision table for which sign-off to use.