https://imanudin.net/2014/12/25/relay-tips-based-on-userdomain-receiver-on-zimbra-8-5-8-6/

http://shahzadlinux.blogspot.com/2016/08/how-to-set-transport-in-zimbra.html

crear: /opt/zimbra/common/conf/transportfile con esta estructura:

mail-archive.uclv.edu.cu :[10.12.112.102]

compilarlo

/opt/zimbra/common/sbin/postmap /opt/zimbra/common/conf/transportfile

mirar opciones actuales

zimbra@mail-mta-2:~/common/conf$  zmprov -l gs `zmhostname` | grep -i zimbraMtaTransportMaps
zimbraMtaTransportMaps: proxy:ldap:/opt/zimbra/conf/ldap-transport.cf

incluirlo en la configuracion del servidor

zmprov ms mail-mta-2.uclv.cu  zimbraMtaTransportMaps "lmdb:/opt/zimbra/common/conf/transportfile,proxy:ldap:/opt/zimbra/conf/ldap-transport.cf" 

comprobar

zimbra@mail-mta-2:~/common/conf$  zmprov -l gs `zmhostname` | grep -i zimbraMtaTransportMaps
zimbraMtaTransportMaps: lmdb:/opt/zimbra/common/conf/transportfile,proxy:ldap:/opt/zimbra/conf/ldap-transport.cf