I'm looking for some advice. I managed a small/medium domain 150 users. It's a 2008 R2 domain with Exchange 2010, Lync, SharePoint, File/Print services. The norm, right. So here is my question. Our company has acquired 2 new sites, they want them to work seamlessly among each other in all services except the need to have a separate email domain for each site. So instead of it being just domain1.com they want domain1.com, domain2.com and domain3.com all the while still allowing seamless communication through all other services mentioned above. Been googling for a few hours and I'm just not finding something to fit my needs. Any help is appreciated.
Thank you in advance,