Release Notes 2023.11.1

Release Notes 2023.11.1

18. November 2023 | Release Notes

Release type: Major

The release notes highlight the most important changes in grommunio 2022.12.1 – feel free to check out the detailed logs at GitHub.
The documentation covers the necessary steps for the update procedure.


We are excited to announce the release of grommunio 2023.11.1. This update marks a significant milestone in our journey as a leading open-source groupware platform. With a suite of new features and enhancements, this release underscores our commitment to providing an enterprise-grade communication solution that is both comprehensive and secure.


  • Enhanced EWS Functionality with support for Microsoft Outlook for Mac, Apple Mail, and Microsoft Outlook for Mobile
  • Advanced Single Sign-On (SSO) with Active Directory environments (SPNEGO support)
  • Redesigned User Interfaces, adhering to WCAG 2.1 guidelines for improved accessibility
  • Performance improvements with grommunio Web and 25% faster end-to-end processing
  • Alternative Logon Names Support, offering greater flexibility in identity management for complex enterprise needs
  • Online Update and Upgrade Capabilities integrated with grommunio Admin
  • Recipient Plus-Addressing and enhanced Mailbox DB Operations with grommunio-mbop
  • Modern Authentication in grommunio Web with OpenID Connect including support for 2FA (Two-Factor Authentication)


  • Various Fixes: Including support for non-receiving shared mailboxes and enhancements in imap, exmdb, and alias_resolve modules.
  • Comprehensive IMAP (Large Literals and RFC 7888) and Productivity Enhancements
  • Support for vCard 4.0 and improvements in ‘oxvcard’
  • Refined Folder and Message Delivery including improved ‘create_folder’ and ‘movecopy_folder’ RPCs

Future Roadmap

  • EWS Finalization Date: Planned for December 24, 2023
  • grommunio Next: Q1 2024
  • grommunio Graph API: Q2 2024

Notes on EWS

  • To activate EWS Beta features, add /etc/gromox/ews.cfg to ews_beta = 1
  • Activation of ews_pretty_response is not supported by Mac Mail and is recommended not to be enabled as such
  • The best supported EWS Client is currently Microsoft Outlook for Mac
  • The upcoming EWS operations FindFolder and FindItem are expected to be released within the upcoming 2 weeks after release which enhances Apple’s macOS apps most
Disclaimer: Public Beta Release of EWS Functionality

  • Intensive Development and Testing: The EWS functionality has undergone extensive development to achieve a modern and solid software architecture. This rigorous process ensures a high standard of quality, security, and functionality. However, as with any complex software endeavor, there may be unforeseen nuances in diverse real-world environments.
  • Current Limitations: We acknowledge that two features – the FindItem operation and the Impersonation feature – are not yet included in this beta release. These features are currently undergoing thorough quality assurance testing. We anticipate their inclusion still within the 2023 release timeline, further enhancing the EWS functionality.
  • Commitment to quality and security: Our team, in collaboration with our technology partners, has repeatedly validated the EWS functionality to ensure its security, data protection, and stability. We adhere to the highest standards to safeguard your experience.
  • Feedback and continuous improvement: While we have invested considerable effort in testing, we acknowledge that the diverse and dynamic nature of IT environments can present unique scenarios. Therefore, we welcome and appreciate any feedback or reports of issues from our users. Your insights are invaluable in helping us refine and improve the EWS functionality.
  • Support for subscription holders: With the release of this EWS functionality, it becomes a fully supported protocol within grommunio. Subscription holders are entitled to our full support for any queries or assistance related to EWS. For customers and hosters: Please approach your support representative if you need any planing for EWS rollout. As with every new big feature, it is recommended to plan the availability with care and our staff is committed to support you well.

We extend our heartfelt thanks to our customers, partners, and the community for their invaluable input and feedback, especially to:
clique2015, robert-scheck, General-Aussie, steve, prandev01, crpb, rnagy, walter any many others.

Join the discussion in the grommunio community.