The spam blocklist SORBS has been shut down. By default Zimbra uses SORBS via SpamAssasin, but also many Zimbra Administrators have set-up SORBS as part of Postfix MTA restrictions. Monitor the Zimbra MTA logging in /var/log/zimbra.log and make changes to your configuration to make sure email continues to be delivered properly. Postfix reject_rbl_client Check Zimbra’s […]
Tag Archives | spam
Are you using zen.spamhaus.org or dbl.spamhaus.org for fighting spam? Pay attention!
Spamhaus is making some changes in their policy enforcement, from their website: Are you currently using the Spamhaus Project’s DNS Blocklists (DNSBLs)? Do you access them via the Public Mirrors, for example, query “sbl.spamhaus.org” or “zen.spamhaus.org”? Do you use Cloudflare’s DNS? If you’ve answered “yes” to all three of those questions, you need to make […]
Personal Email Security — More Important than Ever!
Do you access your email via Wi-Fi? Most of us do. You probably also use WPA2 as the safety protocol for your Wi-Fi network(s) because it’s the industry standard. We all think that reading and sending email via Wi-Fi is generally safe and secure, but the recent KRACK attacks will give you something new to think […]