Route GWS MAILBOXes from On prem postfix mail server // Hybrid Google GWS Solution

Edit transport file for ON-PREM POSTFIX

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vi /etc/postfix/transport

#########################################

########### GWS MAIL Boxes ##############

#########################################

tayab.khan@tayabkhan.com   smtp:[ASPMX.L.GOOGLE.com]:25

#tayabkhan.com          smtp:[ASPMX.L.GOOGLE.com]

postmap /etc/postfix/transport

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Edit transport file for ON-PREM ZIMBRA server

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su - zimbra

vi /opt/zimbra/common/conf/transportfile [Create new file]

tayab.khan@tayabkhan.com   smtp:[ASPMX.L.GOOGLE.com]:25

postmap /opt/zimbra/common/conf/transportfile

zmprov ms `zmhostname` zimbraMtaTransportMaps "lmdb:/opt/zimbra/common/conf/transportfile,proxy:ldap:/opt/zimbra/conf/ldap-transport.cf"

[For Checking : zmlocalconfig   |grep -i postfix_transport_maps]

postfix reload

tail -f /var/log/zimbra.log

=-------------------------------------

From GWS admin panel use Route and also Default route for the incoming route