Hi there...i recent just setup untangle as transparent bridge and facing email problem when using Thunderbird. I notice also that when i disable all the modules that has email scan features Spam Blocker, Phish Blocker and Virus Blocker...am able to send/receive email again. I tried disable the individual feature within the module but it doesn't work. Have to disable all the modules. Have anyone manage to resolve this issue esp on Thunderbird email client?