I have 3 Exchange 6.0 servers connected and a SMTP connector with a smarthost configured (Barracuda server).
Internal accounts are NAME@DOMAIN.LOCAL with smtp adress configured as firstname.lastname@example.org (these are pop accounts configured on an independant pop server)
people are sending internal emails using their public email adress and should go through the SmartHost
if we do :
Server A -> Server A => OK but emails doesn't go through the SmartHost
Server A -> some_domain.com => OK
Server A -> Server B => stuck in queue + timeout expired on the SmartHost
I don't understand why not all emails are going through the SmartHost.
Is it possible to avoid the SmartHost for internal SMTP sends that use the public email adress ?