This article applies to the following products:
- Messageware EPG Spamhaus
How to license and enable Spamhaus?
To license and enable Spamhaus, navigate to EPG Admin > IP Filtering > Spamhaus
Enable DNS Block list > Set this to Enabled
License Key (Spamhaus Subscription) > Click Add/Update Key > enter the license key > click Save
How to check/verify the functionality of Spamhaus?
You can check/verify the functionality of Spamhaus by navigating to EPG-Reports > Raw Data > IP Filtering Data > select the substatus as DNSBL
This Report will show all the connections that were blocked via the Spamhaus
Are there alerts/digests for Spamhaus blocked connections?
Yes, there are! You can configure them in EPG-Admin.
Navigate to EPG-Admin > Alerts & Digests > enable the following
Sample Email Digest:
How to prevent Spamhaus from blocking legitimate connections?
There might be a scenario where Spamhaus will flag legit IPs and users won't be able to connect from it. To fix that you can add the IP in the EPG IP Allow list and it will override the Spamhaus blocklist.
Navigate to EPG-Admin > IP Filtering > Allow list > set it to enable, add the IP and save
How to check DNS queries for Spamhaus ?
You can check DNS queries using the Spamhaus license key to verify that the DNS connectivity for Spamhaus from your exchange server is working.
Replace the <Spamhaus license key> with your spamhaus license key and run the following commands one at a time on your exchange server
nslookup 2.0.0.127.<Spamhaus license key>.sbl-xbl.dq.spamhaus.net
nslookup 2.0.0.127.<Spamhaus license key>.xbl.dq.spamhaus.net
nslookup 2.0.0.127.<Spamhaus license key>.zen.dq.spamhaus.net