Overview
Receiving many spam emails coming from specific email addresses. The addresses and the domain are blocked, by being added into the GFI MaillEssentials Email Blocklist, but emails are still received from the addresses.
Solution
Please follow the steps described in the Virus and Spam Emails not Getting Detected by MailEssentials article to perform a cleanup of old files and logs in the MailEssentials folder.
Additionally, since the spammer is using some sort of mass mailing, please alter your IP DNS blocklist for optimal coverage. In MailEssentials go to the IP DNS blocklist. Ensure that bl.spamcop.net and dul.dnsbl.sorbs.net are enabled.
- Type
zen.spamhaus.orgin the Domain box and click Add IP DNS Blocklist. - Type
b.barracudacentral.orgin the Domain box and click Add IP DNS Blocklist. - Type
dnsrbl.orgin the Domain box and click Add IP DNS Blocklist. - Type
dnsbl.sorbs.netin the Domain box and click Add IP DNS Blocklist. - Ensure the new lists are enabled and click Apply.
Open a browser and go to barracudacentral.org. Click the Request access link on the left. Fill out the form providing your external IP address in order to access the Barracuda Central blocklist.