Hi there.
Having problem that mail flow not doing ok. Quick description of environment.
Two active directory domains (parent and child relationship)
DOMAIN.LOCAL
DOMAIN.CHILD.LOCAL
Two sites (one for DOMAIN.LOCAL and one for DOMAIN.CHILD.LOCAL)
Two Exchange servers, each and one in their own sites.
Default E-mail adress of user in site 1: John.smith@domain.com
Default E-mail address of user in site 2: Lisa.smith@domain.RS
We have 2 send connectors, one for Exchange2013 in SITE1, and the other for EXCHANGE2013 in SITE2.
This send connectors are using "unique" smart hosts. Smart host 1 is in SITE1 and Smart host 2 is in SITE2.
Ok, the wicked scenario.
User from SITE1 (John.smith@domain.com) sends mail to (John.smith@gmail.com). Mail flow goes ok, it relays thru smart host in SITE1.
Now if John.smith@domain.com send mails toJohn.smith@gmail.com and puts CC or TO also address:lisa.smith@domain.rs, then this mailflow goes "outside" toJohn.smith@gmail.com with Smart Host 2 in SITE2, which is not a desired situation.
Basically we would like to when John.smith@domain.com sends mail to:John.smith@gmail.com and lisa.smith@domain.rs, that for domain.rs exchange servers would talk to each other, but for delivering toJohn.smith@gmail.com we would like that it goes thru Smart host 1 and not 2.
I hope I have describe my situation ok and it's understandable?
with best regards
bostjanc