I have a question about changing sender domain name.
Let's say our client have the following "Sender authenticated name" on SFMC : "communicationabc.abcenterprise.com" (they have a SAP - Sender authenticated package)
They want to change it for "communication.abcenterprise.com". They used to use that domain name in their previous emailing platform before moving to SFMC, and they would like to be able to use that one again.
What should be done to get a new or another Sender authenticated domain name on SFMC? If they change their sender authenticated name, does it involve a new IP address that will have to be warmed up?
What should be done first if the sender domain name they want to use, has been already used in the past on their previous email platform ?
In general, we would like to understand all the impacts (in terms of extra costs, extra IP, SAP, IP warm up, deliverability, email delivery, etc...) and all the steps that need to be done for changing the sender authenticated domain (or having another one).