Tag Archives | zimbra security

Email security webinar about DMARC

Hello Zimbra Customers, Partners & Friends, Zimbra’s Barry de Graaff and Randy Leiker from Skyway Networks team up for a new webinar series focused on Email Security. These hands-on webinars will include practical how-to information and best practices to help you maximize Zimbra. Learn how to fine-tune key security standards like SPF, DKIM, DMARC, MTA-STS, […]

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Email Security Webinar – SPF and DKIM

Hello Zimbra Customers, Partners & Friends, Zimbra’s Barry de Graaff and Randy Leiker from Skyway Networks team up for a new webinar series focused on Email Security. These hands-on webinars will include practical how-to information and best practices to help you maximize Zimbra. Learn how to fine-tune key security standards like SPF, DKIM, DMARC, MTA-STS, […]

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New Zimbra Webinar Series! Kicks Off 8 March with Email Security

Hello Zimbra Customers, Partners & Friends, Zimbra’s Barry de Graaff and Randy Leiker from Skyway Networks are teaming up for a new webinar series. These hands-on webinars will include practical how-to information and best practices to help you maximize Zimbra. The first webinar on 8 March focuses on email security and using modern email authentication and encryption. Introduce and […]

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Hotfix Available 5 Feb for Zero-day Exploit Vulnerability in Zimbra 8.8.15

Hello Zimbra Friends, Customers & Partners, A new Zero-day exploit has been identified that affects Zimbra 8.8.15. Since learning of the reported vulnerability, Zimbra Engineering has verified the issue and produced a hotfix (for 8.8.15 p30). The hotfix will be available to Zimbra customers through Zimbra Support. A durable fix for the issue is undergoing […]

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Zimbra SkillZ: Add an External Email Warning in Zimbra

Hello Zimbra Customers, Partners & Friends, In today’s blog, I’ll show you how to add an external email warning message in Zimbra when receiving an email from an external domain. This is done using a Sieve filter, and it can be enabled per account, COS, domain and server. First, create /tmp/myfilters su – zimbra nano […]

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