It is well known that you can enable 2FA in Zimbra Network Edition to enhance account security. All details on Zimbra 2FA can be found at https://wiki.zimbra.com/wiki/Zimbra_Two-factor_authentication Zimbra also enables by default the Trusted Devices feature. This allows users to enter their 2FA token only once for each device. Consider turning off the Trusted Devices […]
Archive | Partners
Upgrade & Migration Guides for upgrading to Zimbra 10
We have released the Upgrade & Migration Guides for upgrading Zimbra 8.8.15 and 9 to Zimbra version 10. For Non-NG setup you can use the following guides: In-Place Upgrade Guide (Single and Multi-Node setup)Rolling-Upgrade Guide (Multi-Node setup)For NG setup 9.0.0, 8.8.15 for both Network Edition and FOSS you can use the following guides: In-Place Upgrade […]
Spam blocklist SORBS has been shut down, update Anti-Spam settings
The spam blocklist SORBS has been shut down. By default Zimbra uses SORBS via SpamAssasin, but also many Zimbra Administrators have set-up SORBS as part of Postfix MTA restrictions. Monitor the Zimbra MTA logging in /var/log/zimbra.log and make changes to your configuration to make sure email continues to be delivered properly. Postfix reject_rbl_client Check Zimbra’s […]
Open Communication, Open Core, Open Standards: Zimbra Partner Summit
The Zimbra team had a fulfilling schedule in May. The two recent Partner Summits at Rome and Bangkok were filled with the buzzing energy of collaboration. It was a powerful reminder of the incredible partnerships we have forged. Our keynote speakers At the Partner Summit, our keynote presenters touched on the notable trend of […]
How to fix Samsung Phones not being able to send mail (ActiveSync)
In this article you will find a short how-to on how to fix the issue that some Samsung phones can receive mail, see calendars, but cannot send mail via Zimbra. Users will see messages go immediately to the outbox with a warning that the message was not sent. ActiveSync protocol version This issue affects only […]
Mobileconfig in Settings menu Zimlet
This Zimlet adds a menu option in the Settings menu to download mobileconfig file to configure your Zimbra account on Apple devices. The same is included in Modern UI by default under Settings->Accounts then expand your account and scroll down. This Zimlet exposes the feature more prominently and makes it easier to find. You can […]