Schedule campaign
Schedule a draft campaign to send at a set time.
MCP tool mailjet_write → schedule_campaign
write Confirm
Does what scheduling on the Review & Send page does. send_at is an ISO 8601 date and time with an offset, up to 60 days ahead, and the response returns the time Mailjet stored. Mailjet does not let you edit a scheduled campaign: use unschedule_campaign first. It reaches your contacts. By default you confirm each call; you can switch that off for this tool.
Parameters
| Name | Type | Description |
|---|---|---|
| campaign_id integer required | integer | Campaign ID from list_campaigns. |
| send_at string required | string | ISO 8601 date and time with offset, for example 2026-10-23T08:00:00+01:00. |
tools/call
{
"jsonrpc": "2.0",
"id": 1,
"method": "tools/call",
"params": {
"name": "mailjet_write",
"arguments": {
"operation": "schedule_campaign",
"arguments": {
"campaign_id": 7203318846,
"send_at": "2026-10-23T08:00:00+01:00"
}
}
}
}Example response
{
"content": [
{
"type": "text",
"text": "{ ... same JSON as structuredContent ... }"
}
],
"structuredContent": {
"campaign_id": 7203318846,
"name": "Weekly digest, Oct 23",
"subject": "This week at Northside, Oct 23",
"status": "scheduled",
"scheduled_for": "2026-10-23T08:00:00+01:00"
},
"isError": false
}