Can my agent send cold outreach?

No. AgentMail does not support cold outreach: email to people who have not asked to hear from you, such as prospects from a scraped or purchased list, or an automated sales sequence. Writing each message with an LLM does not change that.

What the Terms say

The Terms of Service apply to everything your agents send:

• Section 8(h) prohibits sending “unsolicited or unauthorized advertising, promotional materials, email” or spam. It also prohibits emailing people who have not consented where the law requires consent, and ignoring unsubscribe or opt-out requests.
• Section 4(e) makes you responsible for every action your agents take, whether they act on their own or not.
• Section 4(f) requires every commercial message to include a working way to opt out and a clear notice of it, as CAN-SPAM requires. On the shared @agentmail.to domain, AgentMail adds List-Unsubscribe headers to each message; on a custom domain it does not, so add your own. Either way, put a clear opt-out notice in the message itself.
• Section 8(j) requires you to disclose that a message comes from an AI agent where the law requires it.

What AgentMail is built for

• Replying to people who wrote first. Support requests, scheduling, and anything else that starts with an email to your agent.
• Emailing people who asked to hear from your agent. They signed up, requested a quote, or opted in.
• Transactional and operational mail. Confirmations, receipts, status updates, and reminders about something the recipient started.
• Work email with people who expect it. Colleagues, customers, or vendors who have agreed to work with your agent by email.

Rules for sending

Honor opt-outs right away

When someone replies asking your agent to stop, add their address to your organization’s send block list. An organization-level entry covers all your inboxes, and AgentMail rejects any later send to that address with a 403 and code message_rejected. Some allow entries override that block: one for the same address at any scope, or one for its domain at the pod or inbox level. Remove those for anyone who opted out.

import os
from agentmail import AgentMail
client = AgentMail(api_key=os.environ["AGENTMAIL_API_KEY"])
# block future sends to someone who asked to stop
client.lists.create("send", "block", entry="jane@example.com", reason="opted out by reply")

To decide whether a reply is an opt-out, read its extracted_text, which holds only the new reply without quoted history. See Reply extraction and Lists.

Stop on bounces and complaints

Subscribe to the message.bounced and message.complained events. A bounce means the address does not accept your mail. A complaint means the recipient marked your message as spam. Do not retry either address, and review what your agent sent and to whom.

AgentMail weighs bounce and complaint signals, and the Terms allow it to suspend accounts that send unsolicited mail.

Do not use warm-up tools

AgentMail does not recommend third-party warm-up tools. Sending reputation comes from recipients who want your agent’s mail and engage with it.

Expect limits on new accounts

New accounts start with sending limits. See What are the rate limits?

Get help

Not sure whether your use case fits? Email support@agentmail.cc before your agent sends, with your organization ID and a short description of who your agent emails and why.