Active Directory account pickers (Control Panel)
The Control Panel gained a read-only Active Directory browser.
Services/ActiveDirectoryService.cs — enumerates every domain in the current forest (RootDSE defaultNamingContext + the Partitions container's domain crossRefs, so there is no dependency on System.DirectoryServices.ActiveDirectory) and searches a domain's users with a single LDAP-escaped DirectorySearcher matching sAMAccountName / displayName / mail / userPrincipalName. Built on System.DirectoryServices, which net8.0-windows resolves from the Windows Desktop shared framework the installer already bundles. On a non-domain-joined machine it reports a friendly reason instead of throwing.- Account → Directory tab — "Browse Active Directory…" opens a domain + search browser; the picked account fills ADDomain / ADUsername and ticks linked to Active Directory.
- Distribution-list recipients — "Add from AD…" multi-selects AD accounts and imports their e-mail addresses into the list.
Validated end-to-end against a live domain controller (progressiverobot.local): domain enumeration, the all-users query, and the name / e-mail filters all returned the expected results.
Other Control Panel improvements
- Clearer "settings could not be read" diagnostics. When the server returns the generic TargetInvocationException, the Control Panel now unwraps it and explains the real cause — connect with the server-administrator account, or the server cannot reach its database — instead of showing "Exception has been thrown by the target of invocation". (This is what produced the misleading "26 settings could not be read" message on the Protocols page for a non-admin connection.)
- About page filled out with maintainer / company details — Christopher Holloway / Progressive Robot Ltd (www.progressiverobot.com).
Packaging & consistency
- The vendored MariaDB Connector/C client (
libmysql.dll + auth plugins) is staged into the build output by the server post-build step, so MySQL/MariaDB back ends work out of the box. - Version consistency: server Version.h, the Control Panel assembly and the installer are all 6.2.4.
The Control Panel requires the .NET 8 Desktop Runtime (bundled by the installer and installed silently when missing). For the full 6.2.x feature set — authentication modernization (SCRAM/channel binding/Argon2id/OAuth2), Sieve + ManageSieve, observability and deliverability — see the README and the 6.2.3 release notes.
