Blocked incoming emails on zimbra. What could be the reason?
There are two servers on Centos 7, single - server zimbra, the second home gateway/router. Once a day you block incoming server-Zimbra. Be treated by restarting iptables gateway. Locks up consistently in the morning. Checked all the startup scripts. There is a suspicion on fwrules.sh but in the logs says that everything runs without error. And it is unclear why restart all treated. Please help, or in what direction to look