# email.sent: accepted by Resend, nothing more
This event means the API request was successful and Resend will attempt to deliver the message to the recipient's mail server. Delivery has not happened yet.
## What to do on receipt
1. Record the `email_id` from `data` against your own message record. This is the handle every later event (delivered, bounced, opened) will reference.
2. Mark your message as queued, not sent. Your UI copy should say "sending" or "queued," never "delivered."
3. Do not notify the sender or trigger downstream flows that assume the recipient has the email.
## The trap
Reading `email.sent` as delivery confirmation. Between this event and `email.delivered`, the email can bounce, fail, or get suppressed. If you mark orders confirmed, receipts issued, or notifications complete on `email.sent`, you will lie to users whenever delivery fails. The only event that proves the mail server got it is `email.delivered`.