| Name | Type | Description | Notes |
|---|---|---|---|
| from | \sendx\model\XFrom | ||
| to | \sendx\model\XTo[] | ||
| reply_to | \sendx\model\XReplyTo | [optional] | |
| subject | string | Override template subject | |
| template | string | [optional] | |
| template_id | string | Template identifier | [optional] |
| variables | array<string,mixed> | Template variables for substitution | [optional] |