managing spam

[Eric B Munson]

On 2015-06-26 11:19, John Smith wrote:
> I'm getting a ton of spam recently; 50+ messages in one day. At first
> it was just 2 or 3 per day, and I setup a few kolab filters to handle
> it based on subject or sender, a bit of a pain but doable.
> 
> Then I tested a new email client called "Geary" and the thing just
> nicely downloads all images it finds in the email; yeah at that point
> the spammers got their "this user exists and read the email"
> notification due to the image hit on their server and I suddenly (next
> day) got dumped on and it hasn't let up.
> 
> So what are my options? I can't manage this via server filters anymore
> because each subject / sender / ip address is different.
> 
> Is there not a way to say to kolab: "if sender is in addressbook, move
> email to folder X"?
> 
> What about an easy way to run spam detection on my server; it's stock
> cent os with just kolab 3 installed. I took a peek once at installing
> a spam detection engine into kolab but my eyes sort of glazed over
> when I read the massive page of instructions. Just getting kolab
> installed was nightmare itself, don't want to take a chance of messing
> something up now that it's all working.
> 
> Am I out of luck?

Have you configured spamassassin?  It works very well for me.  There are 
still days that can get bad when the spammers make a change that gets 
around SA, but it quickly catches up.

Eric