Zimbra Postfix can be configured to use Postfwd. Postfwd can be seen as a firewall for Postfix and it allows the creation of rulesets to implement email restrictions. A new Admin UI Zimlet and extension leverage Postfwd to configure per user attachment size limits. More information and download is available on the Per user attachment […]
Image in email signature Zimlet
A new Zimlet is released that adds a button in the compose field in Settings->Signatures which allows the user to add images in email signatures. You can download the Image in E-mail Zimlet via the Zimlet Gallery and then deploy it as usual with zmzimletctl deploy zimbra-zimlet-signature-image.zip
Zimbra Patches: 9.0.0 Patch 31 + 8.8.15 Patch 38
Hello Zimbra Friends, Customers & Partners, The ClamAV package has been upgraded to version 0.105.2 to fix multiple vulnerabilities. Zimbra 9.0.0 Kepler Patch 31 and 8.8.15 James Prescott Joule Patch 38 As part of this patch, we are releasing the updated ClamAV and its related packages which are installed only on MTA nodes. Since this […]
A Milter for using Spamhaus HBL with Zimbra Postfix
In this article you will learn how to use Spamhaus Hash Blocklist (HBL) to improve email protection in Zimbra. For a long time administrators of Zimbra have relied on Spamhaus to fight incoming spam by configuring Postfix using traditional blacklists. These traditional blocklists work by blocking IP (ranges) and domains of known spammers. When an […]
Improve email Zimbra protection with Spamhaus HBL
In this article you will learn how to use Spamhaus Hash Blocklist (HBL) to improve email protection in Zimbra. For a long time administrators of Zimbra have relied on Spamhaus to fight incoming spam by configuring Postfix using traditional blacklists. These traditional blocklists work by blocking IP (ranges) and domains of known spammers. When an […]
Zimbra Patches: 9.0.0 Patch 30 + 8.8.15 Patch 37
Hello Zimbra Friends, Customers & Partners, Zimbra 9.0.0 Kepler Patch 30 and 8.8.15 James Prescott Joule Patch 37 are here. These patches include the following listed in their respective releases What’s New Security Fixes Fixed Issues Known Issues Please refer to the release notes for the patch installation on Red Hat and Ubuntu platforms. An […]