We will be upgrading services for some zMailCloud customers at this time.
The objective is to improve performance, resilience and service reliability.
This will be a significant upgrade, from Zimbra 9, to Zimbra 10. See below for some of the expected new features.
There will be up to 2 hours total of service interruption during one of these maintenance periods. If you're not able to access services, please be patient, your mail will be queued for delivery when service resumes within a couple hours.
Please stay tuned to our public monitoring page if you'd like to check whether or not services are available, and the maintenance is complete. https://status.cloudiance.com
**If you have any connectivity or performance issues after the upgrade, please both try waiting an hour, and restarting your devices (turning them on and back off again) prior to contacting support. Thank you!**
Thank you for your business, and hope your Summer has been a good one!
--Your Cloudiance Team
See Outlook support notes that follow, too.
Some of the New Features expected after the upgrade:
Dark Mode:
The Modern web client supports dark mode, with options to toggle it in settings or follow the OS theme.
Hyperlink Validation:
In the web client, you may be warned about deceptive URLs in emails, helping prevent phishing attacks.
Signature Templates:
Administrators can set organization-wide email signature templates, and users can customize them.
New User Tutorial:
A guided tutorial is available for new users, introducing key features of the Modern web client.
Improved Accessibility:
The Modern web client supports Windows High Contrast mode, ensuring usability for visually impaired users.
Mobile and Sync Enhancements:
- Shared Folder Synchronization: Users can choose which shared folders to sync to their mobile devices.
- Mobile Sync Option Visibility: Sync options only appear when mobile sync is enabled.
- Zimbra Chat (available for an extra cost by end of year, contact us for a demo):
Basic Chat: A lightweight 1:1 messaging solution integrated into the Classic web client.
Advanced Chat: A full-featured messaging platform with threaded group conversations, channels, and more.
Other Notable Features:
- Delivery Status Notifications (DSN): Users receive notifications for sent email delivery status.
- Undo Functionality: Undo (Ctrl+Z) is available when composing emails in plain text mode.
- ICS Import/Export: A zimlet is available for importing and exporting calendar data in ICS format.
- EML Export: A zimlet allows users to export and download emails as EML files.
- Custom Fonts: Support for custom fonts in the Modern UI and email composer.
Outlook support notes:
- There have been numerous enhancements with the Zimbra Connector for Windows Outlook (ZCO).
- Zimbra is working on full support for Outlook 2024.
- Support for ZCO for 2024 is expected later this year. Once available:
- If you're using Windows Outlook 2019 or earlier for Windows, we recommend upgrading to Outlook 2021, or (again, once full support is available) to 2024.
- For Mac Outlook 2024 (EWS), we're expecting support Q1, next year.
Wednesday, July 30, 2025
