Barracuda spam filter 300 "deferred" messages inbound
Posted on 2010-09-15
This is an older device, but up until a couple of months ago was fairly reliable. Lately we're seeing a lot of both spam and legit inbound emails being "deferred" due to "timeouts". Some of the legit emails end up getting delivered hours later, but some do not. Some email domains send successfully to us and at other times do not, i.e. there is no common thread in regards to remote domains.
Vendor support claims it must be a network issue somewhere in between our network and the remote mail server, since they see the device connected full 100, no errors there in regards to CRC etc. But since nothing else in our network seems to be having any network-related issues I can only blame the Barracuda device. For example we have a remote desktop server that is being used all the time by 10-15 telecommuters and if it goes down we hear about it.
I'm not seeing any errors on the switch the Barracuda is plugged into either. Besides changing out the Ethernet cable is there anything else you guys (and gals) can recommend? Or hopefully someone has seen this before?? FYI the device is running on the latest firmware.