A: Hi DigitalSandwich,

Thank you for the kind words - we are excited to be here!

There is no limit to how many domains you can authenticate but you can only send each edition of a newsletter from one address. For multiple newsletters, you can send each of those from different domains. We will generate CNAME records for each domain that you enter - once you have added those to your DNS host and validated them, you can switch the send-from email back and forth for different sends.

If you are enjoying your experience with rasa.io, we would love it if you could write us a review : ) Thanks!