Howto Solve LDAP Error in Creating Account

Check object class first :

zmprov gacf | grep ObjectClass
zimbraAccountExtraObjectClass: amavisAccount
zimbraAccountExtraObjectClass: posixAccount
zimbraAccountExtraObjectClass: sambaSamAccount
zimbraAccountExtraObjectClass: sambaAccount

Remove optional object class :

zmprov mcf -zimbraAccountExtraObjectClass posixAccount
zmprov mcf -zimbraAccountExtraObjectClass sambaAccount
zmprov mcf -zimbraAccountExtraObjectClass sambaSamAccount