I have configured Zimbra as a mail server in my production network working fine from last 10 days but today suddenly users are not able to receive mail from server. I have check all service from "zmcontrol status" and all services running fine. Then I have check mail queue and found all mails in queue I dont know why this happen?
can any one tell m what should I check? and what is a reason why the mail are getting stuck in queue? I am using Zimbra Release 5.0.11_GA_2695.RHEL5_20081117051306 RHEL5 FOSS edition