Request: Disable update.bad.phishing.sites job when phishing checks are disabled

[Matt Hampton]

Julian Field wrote:
>> I'd bet quite a few haven't noticed that they're downloading stuff 
>> they don't need, which also places a load on the server offering 
>> these files.
> Update to version 4.68 and you will find that 
> update_bad_phishing_sites has changed completely. For starters, it now 
> only downloads the changes to the file and not the entire file every 
> time. So the individual download is very small.
>
>
To give you some idea - the new code reduces the bandwidth to 4% of the 
previous version and the update script only downloads something if there 
is a new update to download (it works in a similar way to sa-update by 
using DNS lookups). Daily downloads (per server) are now in the order of 
140Kb  (compared to almost 3.5 Mb).

If you don't want to upgrade to the latest version of MailScanner, the 
new version of the script is backwardly compatible - so you can download 
the new source package and just extract the script and install it manually.

matt.