Over the last 3 weeks our Zimbra server has stopped processing mail twice. This is an unheard of situation for our server. What I am finding is that the Antivirus system is shutting down. There is nothing in any of the logs describing any problems with it, but looking in the Admin console you can see the email backup in the deferred category and the reason for deferral being given is that it is unable to establish a connection with the A/V subsystem. I can run zmclamdctl start and then requeue the deferred mail, but it throws a wrench in the overnight reporting that gets mailed out. As this problem is newly occurring just wondering what is going on that would cause it and what remedies are available? Is is possible to disable the A/V subsystem? It is rather redundant as I have an A/V gateway ahead of the the Zimbra server. I'd rather fix the issue though.