Set reply-to header on single-send API


Is their a way to set the reply-to header in the single-send API?


Hi @tomdev,

The reply-to address for single send emails is set in the HubSpot UI, not by the request made to actually send the email:


Actually I didn’t read the docs carefully enough, you can set the reply-to via the API

It’s via customProperties -> message -> replyTo