Use phplist in another server than the sender's domain

I am trying to use phplist in a different server than the domain that I want to use it as a sender. Is is possible?

To clarify my question:

• my phplist is installed in example.com
• The domain that I want to use as sender is example1.com (in another ip than phplist)

I would need some help on how I have to set up my dns settings in both servers. (In phplist settings I use smtp credentials of info@example1.com)

Please let me know if I need to clarify something better.

It's perfectly acceptable for a domain to be associated with more than one server in various ways. You don't have to do anything special to send from a different domain, but it would be a very good idea to add the IPs to the SPF record for the domain you're sending from. For outbound you don't have to do anything in DNS - to deal with bounces you can use a return path in your sender domain rather than the from domain.