I want to host my Zimbra server with a hosting company and users will access their emails from different locations which means different ip addresses as well. How do I configure it so to avoid open relay. I do not want to use 0.0.0.0/0 in the MTA Trusted Network section as I know spammers will have a field day.
- Zimbra Collaboration 8.6 Patch 9 now available (includes fix for CVE-2017-8802). Read the announcement.
- Zimbra Collaboration 8.8.6 is available - Improved real-time backup and restore, HSM, Mobile Sync, HSM and Zimbra Chat and Zimbra Drive. Read the announcement.
- Are you a Zimbra Developer? You can find some interesting stuff in our Official GitHub: https://github.com/Zimbra and check the Community Projects too: https://github.com/Zimbra-Community/
Ask questions about your setup or get help installing ZCS server (ZD section below).
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