| Connected Account | The connected account to use for the request | Connected Account | Yes | |
| Sender email | Email address of the sender of the email | Email | No | |
| Sender name | Name of the sender of the email | Text (Short) | No | |
| Recipient email | Comma-separated list of recipient email addresses | Email | No | |
| Subject | Subject of the email to send | Text (Short) | No | |
| Dynamic template? | Whether this email will contain a dynamic template | True/False | Yes | |
| MIME type | MIME type of the email to send | Predefined Choice List | No | |
| Message body | Message body of the email to send | Text (Long) | Yes | |
| Template ID | | Text (Short) | No | |
| Dynamic template field key 1 | Key of the dynamic template field | Text (Short) | No | |
| Dynamic template field value 1 | Value for the field | Text (Long) | No | |
| Dynamic template field key 2 | Key of the dynamic template field | Text (Short) | No | |
| Dynamic template field value 2 | Value for the field | Text (Long) | No | |
| Dynamic template field key 3 | Key of the dynamic template field | Text (Short) | No | |
| Dynamic template field value 3 | Value for the field | Text (Long) | No | |
| Bcc email | Comma-separated list of emails of the recipients of a blind carbon copy of the email | Text (Long) | No | |
| Categories | Comma-separated list of categories. Each category name may not exceed 255 characters | Text (Long) | No | |
| Cc email | Comma-separated list of emails of the recipients of a carbon copy of the email | Text (Long) | No | |
| Enable sandbox? | Whether to use to the sandbox for testing out email-sending functionality | True/False | No | |
| IP pool name | The IP Pool that you would like to send this email from | Text (Short) | No | |
| Header object key 1 | Key to set in the header object | Text (Short) | No | |
| Header object value 1 | Value to set in the header object | Text (Long) | No | |
| Header object key 2 | Key to set in the header object | Text (Short) | No | |
| Header object value 2 | Value to set in the header object | Text (Long) | No | |
| Header object key 3 | Key to set in the header object | Text (Short) | No | |
| Header object value 3 | Value to set in the header object | Text (Long) | No | |
| Send at | When to deliver the email. Scheduling more than 72 hours in advance is forbidden | Datetime | No | |