Getting these emails every 10 minutes. Can anyone help me to fix this?
The spam filter daemon is unable to reach the database servers via HTTP. Please make sure that the device is able to send HTTP (TCP port 80) requests to the Internet. You may have to allow such traffic on upstream devices.
Since you weren't having this problem before, I would suspect that your connection to the Internet is flaky:
Any luck with any of those?
Cheers - Bob