Archive | Security & Privacy

#EFAIL: Zimbra Not Affected

There has been active commentary about the “EFAIL” paper released May 14 by a German and Belgian research team that presented potential vulnerability in PGP and S/MIME encrypted emails. The Zimbra Security team has analyzed the paper and tested Zimbra for any exposure to the EFAIL attack patterns. The Results? Good news. Zimbra S/MIME solutions […]

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Zimbra Admin Alert … Potential “memcrashd” attack

Zimbra memcached may face the “memcrashd” attack on port 11211. By default, memcached listens on a server IP address that is accessible on the network and via the internet if there is no firewall. If your Zimbra memcache servers are behind a firewall, we recommend blocking access on port 11211 from the Internet to Zimbra […]

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Email’s Open Source Renaissance – It’s Time to Expect More

Do you think that email is fading as a communication tool? Think again! Contrary to popular opinion, email is not only still relevant—it’s growing. This whitepaper describes how email providers need to step up and close a yawning innovation gap to meet these demanding consumer expectations: Enterprise-strength privacy and security Cutting-edge functionality All delivered via […]

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ClamAV v0.97 included in ZCS 8.0.6 and below tags all messages as **UNCHECKED**

Hello Everyone. If you are using ZCS 8.0.6 and prior: starting 22 October 2016, anti-virus definitions will no longer update, and your ClamAV instance will stop working entirely. ClamAV EOL source: http://blog.clamav.net/2016/05/clamav-097-engine-end-of-life.html This is a real risk for all outdated ZCS versions, and as a visual symptom, all your messages are being tagged as **UNCHECKED**. […]

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Did You Know? Zimbra Desktop Security Features!

Did you know that the latest version of Zimbra Desktop, v 7.2.8, has two new security features? – Password Lock – Two-Factor Authentication Now your Zimbra data is even safer! Password Lock To enable the Password Lock feature in Zimbra Desktop: 1. Click the Preferences tab. 2. Click General. 3. Scroll down to the Password […]

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