go
mx1.balanced.homie.mail.dreamhost.com and mx2.balanced.homie.mail.dreamhost.com are subdomains to this hostname. homie.mail.dreamhost.com has one IP number.

homie.mail.dreamhost.com
a records
 
+ 208.97.132.208 208.97.128.0/18 AS26347  
+ ---  
subdomains
mx1.balanced.homie.mail.dreamhost.com
mx2.balanced.homie.mail.dreamhost.com