patch
https://app.mailivery.io/api/v1/campaigns//update-response-rate
Set the target reply rate for a mailbox's (campaign's) warm-up traffic — the percentage of outbound warm-up emails that should receive a reply from the network. Higher reply rates are a strong positive signal for sender reputation, but consume more daily sending budget.
Note: If the campaign's SMTP and IMAP email addresses do not match (e.g. relayed sending), Mailivery treats the response rate as 0 regardless of what you set here, because replies can't be reliably routed back to the original sender.
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.