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Overview

You can email any agent in your organization to start a conversation. The agent processes your message, runs its tools, and sends a response back to your inbox. Reply to continue the conversation — just like emailing a colleague. Conversations started via email appear in the dashboard alongside all other conversations.

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Email Addresses

Every agent has a default email address based on its ID: 
agent-{id}@updates.asteragents.com
You can also set a custom email alias in the agent editor to create a friendlier address: 
my-sales-agent@updates.asteragents.com
Both the default and custom addresses work simultaneously. The custom alias is optional.

Open your agent

Go to Control Hub → Agents and select the agent.

Find the Email Address section

Scroll to the Email Address section to view the default address and set an alias.

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How Email Conversations Work

Start a conversation

Email your agent’s address with your message in the body. The subject line becomes part of the conversation context.

Send attachments

Files are uploaded and included in the agent’s context, just like attaching files in the chat UI.

Reply to continue

The agent replies by email. Reply to that message to continue in the same thread — your email client groups the messages automatically.

Loop in teammates

CC recipients are preserved throughout the thread, so you can include colleagues by CC’ing them.

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BCC Behavior

If you BCC the agent on an email, the agent processes the content silently — no reply is sent.
When you BCC the agent, the To and CC fields contain people who don’t know the agent is involved. Replying would expose the agent’s existence to those recipients, so Aster detects the BCC automatically and suppresses the reply.
BCC’d conversations still appear in the dashboard and the agent still runs its tools (e.g., logging to Salesforce), so nothing is lost — only the outbound email reply is skipped. Use this when you want the agent to have context without responding.

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Security

  • Organization members only: The sender’s email must belong to a registered user in the agent’s organization. Emails from unrecognized addresses are silently ignored.
  • All conversations logged: Email-initiated conversations appear in the dashboard with full visibility for admins.

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Custom Email Aliases

Open the agent

Go to Control Hub → Agents and select the agent.

Enter a slug

In the Email Address section, enter a slug (e.g., sales-assistant). Click Suggest to auto-generate one from the agent name.

Save the agent

The agent is now reachable at both {slug}@updates.asteragents.com and agent-{id}@updates.asteragents.com.
Slug rules:
  • Lowercase letters, numbers, and hyphens only
  • Must be globally unique across all agents