patch
https://app.mailivery.io/api/v1/campaigns//update-sending-schedule
Set the timezone and time-of-day window during which warm-up emails are sent. Mailivery only sends inside the configured window so the traffic pattern resembles a real human's working hours — important for deliverability. Choose one of the preset schedules (e.g. Weekdays - 8am to 6pm), paired with an IANA timezone string such as America/Chicago.
Not sure what value to use? See Recommended Warm-Up Settings — match your intended cold-send volume (up to 50 emails/day), set response rate to your plan's maximum, and turn ramp-up on.