[SC-Help] Re: Curious

[John E. Malmberg]

Steve Grosz wrote:
> Currently I use 2 lists:
> 
> sbl.spamhaus.org and relays.ordb.org, and still get quite a bit of spam, 
> at least 25-30 in my inbox alone!
> 
> Is there a better list to be using?

Change your sbl.spamhaus.org listing to sbl-xbl.spamhaus.org and you 
should see a significant reduction.  See spamhaus.org for details.

I have not seen a report anywhere of an incorrect listing in the 
xbl.spamhaus.org.

Also consider using the njabl.org open proxy/ open relay list and the 
list.dsbl.org lists.

There seems to be quite an overlap with the njabl.org and the 
list.dsbl.org, so using both may not be needed.

Also consider adding a DHCP list, most spam comes from DHCP addresses. 
There is a small risk of false positives from this as sometimes ISPs 
will do a renumber and put real mail servers in what used to be a DHCP 
pool that they submitted for listing.

The SORBS.NET DUHL list seems to be the most up to date.  NJABL.ORG 
dynablock list seems to be less up to date.

AOL has been rejecting e-mail with no rDNS at all for quite a while now, 
and there does not seem to be anyone complaining publicly about their 
e-mails being rejected.

One of my postmasters has a policy that when spam comes in from certain 
countries, they put a local block on the /23 surrounding it.  The reject 
text points to a link for the procedure to request a white listing.  At 
the last report from that postmaster, there have been no requests to 
have any of those blocks removed from any source.

The unconfirmed and mulithop dsbl.org lists are likely to cause real 
e-mails to be rejected, so they are best for scoring.

The SORBS spamtrap lists are also prone to listing ISP mail servers.

Also, please do not top-post, and trim as much as you can from the 
previous replies with out losing context.

-John
wb8tyw at qsl.network
Personal Opinion Only