# Send email Let your agent send the email. Send a message through StableEmail from your agent’s task. Review the recipient and message before asking it to send. Provider in the worked example: StableEmail. Price shown for this route: 2¢ per email. ## What it can do ### Send an email Send from StableEmail’s shared relay with text or HTML and up to five attachments. Price: 2¢. ### Buy an inbox Get an inbox for 30 days. Check the provider’s renewal terms before buying. Price: $1. ### Send from your inbox Send from an inbox you have purchased. Price: 0.5¢. ### List and read messages List messages and read their contents, including attachment links. Price: 0.1¢ each. ### Buy a subdomain Create inboxes under your own subdomain on stableemail.dev. Price: $5. ### Manage and clean up Manage inbox settings or request cancellation under the provider’s terms. Price: Free. ## A real example Tested on 2026-10-29 through StableEmail. One paid call from our own test run. Your agent asked: Send a plain-text test email to an approved inbox Returned in this test: - Provider response: Success - Message ID: Returned - Inbox delivery: Not confirmed Charged in this test: $0.02. One plain-text message accepted for delivery to an approved test inbox. ## Connect your agent Read the [setup guide](https://taskfuel.ai/docs/setup/) and choose the connection your agent supports. Use one TaskFuel account and prepaid balance. Inspect the provider and request quote before a paid call, then review the returned response and recorded charge. ## When to use it ### Send the report from the task. Check the recipient and attachment, then tell your agent to send. ### Send an update after a run. Configure the recipient and sending permissions in your agent before scheduling it. ### Give the recipient a way to answer. Set a reply-to address you already use, or request a provider inbox. ## Questions ### What does an email cost? 2¢ from the shared relay address, or 0.5¢ once you have your own inbox or subdomain. Your agent shows the price for your own request before it pays. ### Do I need a sending provider account? No. Your agent pays from your TaskFuel balance, so there is nothing else to sign up for. ### What address does the email come from? By default, StableEmail's shared relay address. You can set your own reply-to on any send so answers reach you. If you want mail to go out from an address of your own, buy an inbox for $1 or a subdomain for $5. ### Can my agent receive replies? Yes, with an inbox. Forward it to a mailbox you already read, or leave it programmatic: your agent lists and reads messages for a tenth of a cent each. Message content and attachments stay available for 90 days. ### Can I send attachments? Up to five per email. Each one carries a filename and a content type, so a PDF, a CSV or an image all work. ### Will it end up in spam? Deliverability is the provider's to manage, not TaskFuel's. Mail from the shared relay is sent alongside everyone else's; a subdomain of your own gives you a sending identity that is only yours. ### What if a send fails? If the provider answers a send with a 4xx or 5xx, nothing is charged. A send the provider accepts can still be charged when its answer is empty or unhelpful. ## Related tool guides - [Compare carrier lookup API access](https://taskfuel.ai/tools/carrier-lookup-api/) - [Give your agent a phone number to text and call from](https://taskfuel.ai/tools/agent-phone-number/) - [Check an email address before sending](https://taskfuel.ai/tools/verify-email-addresses/) - [Search flights to include in a trip email](https://taskfuel.ai/tools/flight-search-api/) ## Reference - [Read this guide on the website](https://taskfuel.ai/tools/send-email/). - [Browse providers and capabilities](https://taskfuel.ai/catalog/). - [Pricing](https://taskfuel.ai/pricing/). - [Agent instructions](https://taskfuel.ai/llms.txt).