Jan 9, 2020 7:29 AM
There isn't a way to send email to a contact using a "sender id". Can you describe the process you are hoping to implement in a bit more detail?
For example if you were using our APIs to send email you would need to be using either our "Single Send API" or the "SMTP API" - both of which require our transactional email add-on. Both of these would simply require a valid email address to send to an individual.
I'm happy to provide more insights I'd just need to understand what you're trying to do in a little more detail.