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DavMail Project Has Released Version 7.0.0

The latest software update transitions the primary backend interface to Microsoft Graph.

Updated on Sept. 22, 2026 in Data Centers

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The DavMail project released version 7.0.0, transitioning its backend interface from Exchange Web Services to the Microsoft Graph API. AI Illustration. Upload story photo >

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The DavMail project has released version 7.0.0, marking a significant transition for the open-protocol gateway. The software now uses Microsoft Graph as its primary backend interface, replacing the older Exchange Web Services system.

Why it matters

This update modernizes the software by shifting reliance from older legacy interfaces to the newer Microsoft Graph API. The change ensures the tool remains compatible with current Microsoft service standards and improves synchronization efficiency.

DavMail 7.0.0 enables folder delta sync by default to request only changed items from Graph. The release also introduces a read-only calendar mode via the davmail.caldavReadonly configuration parameter.

The players

DavMail

This open-source gateway software allows users to access Microsoft Exchange via standard open protocols.

Microsoft Graph

This is the primary developer API for accessing data, intelligence, and insights across the Microsoft 365 cloud platform.

The details

DavMail converts open protocols like IMAP, SMTP, and CalDAV into Exchange requests, now powered by Microsoft Graph. Users switching to the new interface must perform a fresh sign-in and will notice distribution lists are now returned as contact groups.

Timeline

  1. September 22, 2026: DavMail 7.0.0 was officially released.

The Tech Race

This release follows the industry-wide trend of sunsetting legacy Exchange Web Services in favor of the more robust Microsoft Graph API. By prioritizing this transition, the project aligns itself with the modern standards of cloud-based enterprise connectivity.

Users must perform a fresh sign-in when transitioning from EWS to the Graph interface to maintain service. Additionally, those requiring restricted calendar access can now utilize the new read-only mode to prevent unintended modifications.

The takeaway

Users should verify their configuration files as the update removes the davmail.caldavImpersonate setting. Embracing the new Graph-based sync will improve performance through reduced data requests.

Further reading

Learn more about evolving infrastructure and server protocols in our Data Centers section.

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Do you trust third-party software to manage your private email and calendar data?