Wosign and Startcom SSL error in Zimbra

Wosign and Startcom SSL might show non trusted in a Browser

   KB 23125        Last updated on 2017-01-18  

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Customers and users with Wosign and Startcom SSL Certificates might see the non-trusted error on their modern Browsers such Firefox and Chrome, even when they installed properly the SSL certificate inside Zimbra using the usual steps


The root CA for Wosign and Startcom have been revoked for modern Browsers such Firefox and Chrome, this is due to the next issue, from Google Security blog: WoSign knowingly and intentionally misissued certificates in order to circumvent browser restrictions and CA requirements. Further, it determined that StartCom, another CA, had been purchased by WoSign, and had replaced infrastructure, staff, policies, and issuance systems with WoSign's

Additional Content

We encourage our Customers to use other brands such Comodo, etc.

Verified Against: Zimbra Collaboration 8.6, 8.5, 8.0 Date Created: 01/18/2017
Article ID: https://wiki.zimbra.com/index.php?title=Wosign_and_Startcom_SSL_error_in_Zimbra Date Modified: 2017-01-18

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Wiki/KB reviewed by Jorge SME2 Copy editor Last edit by Jorge de la Cruz
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