This is an old issue but Zimbra installations can have a very long life span, in addition it is a good precaution to validate your configuration, just in case. Zimbra Proxy has the ability to strictly enforce which values are allowed in the Host header passed in by the client. This is enabled by default […]
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Enhance password security by rejecting common and leaked passwords
In this article you will learn: How to prevent users from choosing common passwords How to add leaked passwords to the list of passwords to reject Enabled the Reject Common Passwords feature You can enable the Zimbra Reject Common Passwords on a per account basis or for an entire Class Of Service (CoS). To enable […]
Zimbra Daffodil V10.1 is here
Zimbra Daffodil V10.1 has arrived. Let’s bloom together. In this blog, we will cover What’s New in Zimbra Daffodil V10.1 #ICYMI How to Get Started – For new users and users looking to upgrade _______________________________ What’s New in Zimbra Daffodil V10.1 License Enhancements Changes in the license are now managed by the Zimbra Collaboration team. Updates will […]
Zimbra Daffodil 10.1 – Prepare for upgrade
Thanks to the incredible support and feedback from the community, the much-anticipated update is almost ready! We will be releasing Zimbra Daffodil 10.1 in the coming days. Preparing for your upgrade In addition to the new features in an earlier blog post, here is some additional information to consider. Zimbra New Licensing System Attention! Zimbra […]
Upgrade & Migration Guides for upgrading to Zimbra 10
We have released the Upgrade & Migration Guides for upgrading Zimbra 8.8.15 and 9 to Zimbra version 10. For Non-NG setup you can use the following guides: In-Place Upgrade Guide (Single and Multi-Node setup)Rolling-Upgrade Guide (Multi-Node setup)For NG setup 9.0.0, 8.8.15 for both Network Edition and FOSS you can use the following guides: In-Place Upgrade […]
Spam blocklist SORBS has been shut down, update Anti-Spam settings
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 […]