ok. Will try it.You're not doing anything wrong, that's how it suppose to work to keep you out of troubles.
However, you can try to edit the delivery server and set the Force FROM property to Never, then give it another try.
https://kb.mailwizz.com/articles/what-tracking-and-sending-domains-actually-are/Sorry, but what is the functionality of the "Domains"? Why we need them?
X-Sender is reserved.I'm trying to operate with this combination: