Hi, Last weekend I installed a new virtual load balancer. Everything has been working fine from Saturday until today. Today our Ironport stopped delivering mail to the virtual IP of the Kemp. We needed to reboot the Ironport in order to get the connections established again. In all our years of having the IronPort we have not had to do that before so I am wondering if I misconfigured something on the Kemp. The next hop for mail after the Ironport is the Kemp.
I am load balancing SMTP only to two servers on the same subnet as the virtual IP. L7 Transparency is turned off. Force L7 is turned on. Persistance options was set to Source IP address and timeout 1 hour. I had found documentation that said for SMTP to turn persistance off but when I did that my SMTP relay did not work. I am wondering if this had anything to do with our issues.
Could anyone give me their thoughts on it?
Thanks