Manage Global S3 Configurations using zms3config CLI

In a previous blog we introduced Zimbra’s new Storage Management, in this article we introduce you to zms3config a command line application that allows you to manage Zimbra’s S3 configuration. The zms3config is the CLI utility to manage the Global S3 buckets which can be shared across mailstore nodes. Bucket configurations can be created from any node […]

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SMTP Smuggling in Zimbra Postfix a technical deepdive

E-mail providers like Microsoft Exchange Online and GMX allowed to pass <LF>.<CR><LF> sequence unfiltered from their outbound (sending mails) SMTP server to the inbound (receiving mails) SMTP server (postfix in our case). In the case of Postfix serving as an outbound/inbound (sending mails/receiving mails) server, it does not ignore the sequence ‘<LF>.<CR><LF>’; rather, it interprets […]

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CentOS 7 and CentOS8 Stream EOL dates are closing in

Keeping your Zimbra up-to-date by installing patches is essential for maintaining the security of your Zimbra servers. However patches are only available for supported (not end-of-life) versions. Recently the 8.8 versions of Zimbra went end-of-life and the Zimbra 9 versions are going end-of-life soon as well. Make sure all your Zimbra servers are on a […]

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