Re: [PLUG] Filtering SPAM through gmail...does it give your IP address a bad name?

[Art Alexion <art.alexion@verizon.net>]

On Tuesday 02 October 2007 09:45:50 Marc Zucchelli wrote:
> I host my customers websites and email. ÂI have several who just want their
> mail to forward to their AOL or Yahoo account. ÂI have more that want to
> have their mail forward to gmail so they can use gmails spam filter. ÂI
> definitely know that Yahoo keeps a "reputation" for certain IP addresses.
> ÂI have had the problem before of having legitimate mail sent through my
> server to yahoo, aol, or gmail end up in bulk mail folders. ÂAfter
> configuring SPF, and installed Domain Keys, as well as hitting "not spam"
> enough times, I seem to be doing ok. ÂI am ready to move some of my
> customers to a new server and I am afraid to start allowing them to forward
> their mail. ÂIf gmail (or anybody else) see's a lot of SPAM coming from my
> ip address (because it's forwarded), will that hurt my IP address's
> reputation? ÂIs this something that a full service web host just has to
> deal with?
>
> Or, is filtering your spam through Gmail actually a GOOD solution?

Speaking from similar personal experience, I have an account @alexion.com that 
is almost 14 years old and spent a fair amount of time as a mailto link on a 
web page.  Needless to say, it gets a lot of spam -- signal to noise ratio 
like 1:125.  

So I forward it through a yahoo account just for the spam filtering.  Seems to 
eliminate about 60% of the spam without using my local cpu cycles for 
filtering.  Bogofilter in this end traps almost all of the remaining 40%.

So the question would be "Does yahoo now think the alexion.com address is a 
spammer?"  As far as I can tell, no.

Here is the only problem that it has created.  If the spam to me has forged my 
FROM address and makes it through yahoo's filters, it never makes it to 
bogofilter locally.  I live with it.

Attachment: signature.asc
Description: This is a digitally signed message part.

___________________________________________________________________________
Philadelphia Linux Users Group         --        http://www.phillylinux.org
Announcements - http://lists.phillylinux.org/mailman/listinfo/plug-announce
General Discussion  --   http://lists.phillylinux.org/mailman/listinfo/plug