Hi. I’m suggesting an improvement to the “Send Email” node: the ability to add custom headers. Users should be able to configure multiple header items, each with a key and a value.
Use case xample: When using Mandrill SMTP, to send an email to multiple recipients as a single message (instead of separate emails for each), the header “X-MC-PreserveRecipients” needs to be sent with the value “true”.
Related: Need option to add custom headers to emails using the Send Mail node