http://wiki.zimbra.com/index.php?title=Transport_Table_for_external_servers

Not tested (yet)!

1. stop zimbra
1a. check if every process is really stopped. don’t want to see stalled mysql or something – happened to me once
2. tar zimbra installation folder
3. tar /var/lib/rpm !!! (I forget often to do this)
4. START ZIMBRA!!! (else upgrade could fail)
5. upgrade
6. if everything works, delete backups, else untar and try again

Source

zmprov mcf -zimbraGalLdapAttrMap zimbraMailDeliveryAddress,zimbraMailAlias,mail=email,email2,email3,email4,email5,email6,email7,email8,email9,email10,email11,email12,email13,email14,email15,email16


zmprov mcf +zimbraGalLdapAttrMap zimbraMailCanonicalAddress,mail=email


zmprov fc config

http://chen23.com/docs/zimbra/custom_address_in_gal/