Issue
When interacting with the SendGrid API, a 202 Accepted status code indicates that your request has been received and accepted for processing. However, it’s important to understand that this does not mean the email has been sent to the recipient’s inbox. In other words, SendGrid may return a "202 Accepted" response even if the email is never actually sent.
This response simply confirms that your JSON request was correctly constructed and that SendGrid has accepted the request and queued the email for delivery. Actual sending and successful delivery happen afterward and are not guaranteed by the 202 response.
Product
Twilio SendGrid (Email API)
Cause
In essence, a 202 Accepted response from SendGrid means the email is queued for delivery, and the outcome (successful delivery or failure) will depend on various factors beyond SendGrid's initial acceptance. Some reasons why an email might not be received despite a "202 Accepted" response:
- Account is not active (is under review status: Suspensions or Billing issues)
- Template Render Failures (unable to parse handlebars template, Invalid template IDs etc)
Resolution
If you notice drops despite receiving a "202 Accepted" response, you can check the status of your account in the SendGrid UI or via the API.
You can also check for incorrect template formatting, which can cause rendering failures. Review your template to make sure it is active and for any formatting or syntax errors, and ensure that your JSON payload matches the template’s expected structure. If you’re using the formatDate helper, consider converting dates to the Epoch format to improve compatibility. Please refer to our documentation on handlebars.
You can also use SendGrid's Activity Feed or the Event Webhook to track the progress and status of your emails, like opens, clicks, or bounces.
Additional Information
If you need further assistance or more in-depth support, please contact SendGrid Support.