Nylas · Schema
Nylas message.opened notification object
Sent when a participant opens a tracked message. This schema describes `data.object` inside the Nylas notification envelope.
CalendarCommunicationsContactsEmailMessagingSchedulingA2A
Properties
| Name | Type | Description |
|---|---|---|
| object | string | Always `message`. |
| grant_id | string | The grant ID that owns the tracked message. |
| message_id | string | The ID of the tracked message that was opened. |
| label | string | The tracking label you assigned when sending the message. |
| message_data | object | Aggregate open data. |
| recents | array | Recent open events with client details. |
| sender_app_id | string | The Nylas application ID that sent the tracked message. |
| timestamp | integer | Unix timestamp of the most recent open event. |
JSON Schema
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"$id": "https://raw.githubusercontent.com/api-evangelist/nylas/refs/heads/main/json-schema/nylas-message-opened.schema.json",
"title": "Nylas message.opened notification object",
"description": "Sent when a participant opens a tracked message. This schema describes `data.object` inside the Nylas notification envelope.",
"type": "object",
"properties": {
"object": {
"type": "string",
"description": "Always `message`.",
"enum": [
"message"
]
},
"grant_id": {
"type": "string",
"description": "The grant ID that owns the tracked message."
},
"message_id": {
"type": "string",
"description": "The ID of the tracked message that was opened."
},
"label": {
"type": "string",
"description": "The tracking label you assigned when sending the message."
},
"message_data": {
"type": "object",
"description": "Aggregate open data.",
"properties": {
"count": {
"type": "integer",
"description": "Total number of times the message has been opened."
},
"timestamp": {
"type": "integer",
"description": "Unix timestamp of the most recent open event."
}
}
},
"recents": {
"type": "array",
"description": "Recent open events with client details.",
"items": {
"type": "object",
"properties": {
"ip": {
"type": "string",
"description": "IP address of the opener."
},
"opened_id": {
"type": "integer",
"description": "Sequential open event ID."
},
"timestamp": {
"type": "integer",
"description": "Unix timestamp of this open event."
},
"user_agent": {
"type": "string",
"description": "User-Agent string of the opener's client."
}
}
}
},
"sender_app_id": {
"type": "string",
"description": "The Nylas application ID that sent the tracked message."
},
"timestamp": {
"type": "integer",
"description": "Unix timestamp of the most recent open event."
}
},
"required": [
"message_id"
],
"x-nylas-trigger": "message.opened",
"x-nylas-category": "Message Tracking",
"x-provenance": {
"method": "authored",
"publisher": "Nylas",
"source": "https://developer.nylas.com/docs/reference/notifications/message-tracking/message-opened/",
"derived_from": "nylas/developer.nylas.com@a7995fb6:src/_component-data/notification-schemas.json",
"generated": "2026-09-28"
},
"examples": [
{
"object": "message",
"grant_id": "<NYLAS_GRANT_ID>",
"message_data": {
"count": 1,
"timestamp": 1695480410
},
"message_id": "18ac281f237c934b",
"label": "Testing Nylas Messaged Opened Tracking",
"recents": [
{
"ip": "<IP ADDR>",
"opened_id": 0,
"timestamp": 1695480567,
"user_agent": "Mozilla/5.0"
},
{
"ip": "<IP ADDR>",
"opened_id": 1,
"timestamp": 1695480567,
"user_agent": "Mozilla/5.0"
},
{
"ip": "<IP ADDR>",
"opened_id": 2,
"timestamp": 1695480567,
"user_agent": "Mozilla/5.0"
}
],
"sender_app_id": "<app id>",
"timestamp": 1695480410
}
]
}
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