In many cases IT staff will have automated TLS certificates so they are renewed and deployed automatically. However sometimes the automation fails or deployments use an additional reverse proxy or web application firewall in front of Zimbra. In the latter case, sometimes the renewal of the Zimbra self-signed certificate is overlooked. Zimbra (LDAP) requires a […]
Archive | Partners
Patch for Zimbra Daffodil 10.0.2, 9.0.0 Patch-34 & 8.8.15 Patch-41
Security bug fixes and OpenSSL upgrade Zimbra OpenSSL now runs in FIPS-compliant mode by default. This increases security which requires no additional action on your part. However, should you run into issues, you can find steps to disable OpenSSL FIPS in the release notes. This patch upgrades OpenSSL to major version 3.0.x. To safeguard your […]
Zimbra with on Cisco Duo cloud based Single Sign-On
In this article you will learn how to set-up Zimbra on Cisco Duo. Cisco Duo is a cloud based identity and access management solution developed by Cisco. Cisco Duo focusses on Two-Factor Authentication (2FA) and integrations with on premise Active Directory, and cloud based SAML IDP’s such as Azure AD, AD FS, Google, Okta, OneLogin, […]
Sending incoming email with bad headers to Junk
Email is always evolving and recently Gmail has started to reject email with bad headers for some customers. Rejecting email with bad headers may help protect against DKIM replay attacks (more on replay attacks in an upcoming blog). When we are talking about messages with bad headers, we mean messages that are not compliant with […]
Patch for Zimbra Daffodil 10.0.1, 9.0.0 Patch-33 & 8.8.15 Patch-40
Cases of Compromised Servers are still a concern for 9.0.0 and 8.8.15 servers It has come to our attention that compromised systems are still prevalent and have not been adequately cleaned. Proactive security measures is essential for the long-term success of your organization. To safeguard your system, we recommend you always upgrade to the latest […]
How to use Zimbra with Elastic Stack 8.x
Hi Zimbra Customers, Partners & Friends, Based on your feedback we have updated the Zimbra Elastic Stack guide to work with Ubuntu 22 and ELK 8.x! The guide has also been extended with steps on how to send log information from audit.log and nginx access and error logs to Elastic Stack. With Elastic Stack you […]