Work around nginx proxy IPv6 fix
sed -i 's| ipv6only=off||g' /opt/zimbra/conf/nginx/templates/nginx.conf.*
Get current settings
su zimbra zmprov gs `zmhostname` | grep -i ipmode
Get public IP
# IPv6 curl http://v6.ipv6-test.com/api/myip.php # IPv4 curl http://v4.ipv6-test.com/api/myip.php
Enable IPv4 and IPv6
zmprov ms `zmhostname` zimbraIPMode both zmprov ms `zmhostname` zimbraMtaMyNetworks "127.0.0.0/8 [::1]/128 IPv4/32 [IPv6]/128" /opt/zimbra/libexec/zmiptool zmcontrol restart