[AusNOG] Spam Filtering

[Noel Butler]

Replying in roundcube so cant reply in-line without destroying who said
what... 

Stick to inhouse, they are your clients, so your rules, some filtering
company based in eg the US isn't going to give a toss if its over
zealous rules eat their mail, spamassassin is more than adequate to do
the job, and most of these outsourced services and devices use it
anyway, but most often the third party services/devices have poor
defaults, you only need to google reliability _device_name_ to see the
nightmares some (but not all) organisation go through, countless whinges
about ironport and barracuda use to flood certain lists in times gone
by, with most resolving the issues by dumping the devices and installing
SA and custom rules on their MTA's. 

Dealing with spam is like dealing with trust, there is no one shoe fits
all, and most importantly, trust can only be earned - not bought. It
takes minimal work to maintain SA, the odd rule tweaking or adding here
and there once you get it setup right and your done, I've probably
adjusted mine once this year, and I might have got one spam get passed
it. 

As for customer releasing? Just tag it, those in IMAP/Webmail can be
auto moved by sieve to a junk folder, those with pop3, can set up their
own local filter based on its tag or X-Spam status header. and if its
suspected virus, discard it right away. 

On 10/03/2015 16:34, Sam Sarkis-UIP wrote: 

> Hi All, 
> 
> Just wondering what is everyone doing for Spam Filtering ? Do you still offer as a service or recommend your customer to go to a particular provider ? 
> 
> Are you hosting the filtering internally on your systems, virtual or physical or Outsourced ? 
> 
> Do you make your customers release/review any spam or do you do it for them ? 
> 
> Thanks
 
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