Using SORBS with Exim 4.x.

SeLLeRoNe

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What do you think about use SORBS for Spam Detector?

Should be usefull? By the way, if someone interested, here there is a guide to use SORBS on Exim 4.x

Exim 4.x is a lot more configurable and hence there is more detail to add...

These entries are normally added to the acl_rcpt ACL in the exim.conf file. The default/example exim configuration should contain an example similar to these.

To deny access, using a normal DNSBL with TXT records.


deny message = Access denied - $sender_host_address\
listed by $dnslist_domain\n$dnslist_text
dnslists = dnsbl.sorbs.net
This will produce a response similar to the following:
550-Access denied - 127.0.0.2 listed by dnsbl.sorbs.net
550 Test entry. To add an X-Warning header so that users can filter:

warn message = X-Warning: $sender_host_address listed by $dnslist_domain
log_message = Listed by $dnslist_domain
dnslists = dnsbl.sorbs.net
Where 'dnsbl.sorbs.net' is replaced by the SORBS zone you wish to use.


This is for Exim 3.x

rbl_domains = dnsbl.sorbs.net - where 'dnsbl.sorbs.net' is the SORBS zone you wish to use.


Took by http://www.de.sorbs.net/
 
What do you think about use SORBS for Spam Detector?
We didn't use SORBS RBLs in SpamBlocker2 because we'd found that it wasn't always safe to do so; it's often politicallly motivated and cn have a lot of false positives. Since they charge money (paid to a charity, but nevertheless they charge money) to be removed, and since they're easy to get into (we've accidentally gotten in it before even though we weren't spamming), we didn't include it in SpamBlocker2 by default..

It's easy enough to add a safe subset (as used by default in SpamBlocker3).

Only In SpamBlocker2, find the line:
Code:
# deny using sorbs name based list
Place the following code immediately above that:
Code:
# deny using safe.dnsbl.sorbs.net
  deny message = Email blocked by SORBS - to unblock see http://www.example.com/
       hosts = !+relay_hosts
       domains = +use_rbl_domains
       !authenticated = *
       dnslists = safe.dnsbl.sorbs.net
The above works well in both SpamBlocker3 (where it's on by default) and in SpamBlocker2, where you have to add it.
This is for Exim 3.x

rbl_domains = dnsbl.sorbs.net - where 'dnsbl.sorbs.net' is the SORBS zone you wish to use.
Really no one should be using exim v3 by now with DirectAdmin.

Jeff
 
thanks for your reply, ive another question, im in blacklist of domain libero.it and i dont find any info about who is theyr spam detector and how delete my host from their black list, there is a website or something to know how i can delete my ip?

thanks
 
They control their blocklists and unfortunately only they can help you.

Jeff
 
Hmm jeff so these lines are a bad idea?

# deny using sorbs smtp list
deny message = Email blocked by SORBS
# only for domains that do want to be tested against RBLs
domains = +use_rbl_domains
dnslists = dnsbl.sorbs.net=127.0.0.5
 
I have disabled SORBS checking for all of my servers. For the same reasons JLasman has shared.

The rest of the lists are doing a good job, but I have noticed that what is really cutting down on spam is Spamassassin.

Just my 2 cents.
 
We've had very good results with the safe SORBS list, as I've noted above.

Jeff
 
Ah ! I didn't read your post completely. My bad.

How is this safe list different than the normal one ?
 
Visit this page and scroll down to look at the differences between the lists under the heading Additional Aggregate Zones.

Then if you're not sure about the included lists, search for them on the same website.

Jeff
 
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