hMailServer 6.2.7 is a Control Panel usability release. There are no server-core changes since 6.2.6 — every improvement is in the .NET 8 administration Control Panel, closing the remaining "standard desktop app" gaps so common tasks no longer need hand-typed paths, external tools or guesswork.
What's new

    File/folder pickers everywhere. Every field that holds a file-system path now has a … browse button: the backup destination and restore file, the archive folder, the ACME certificate folder, the OAuth2 public key, the REST API / Web Services TLS certificate and key files, the ClamWin executable and database folder, and the DKIM private key.
    One-click DKIM. Domain → DKIM gains Generate key pair, which creates an RSA-2048 key, saves the private key, fills the path, and shows the exact selector._domainkey DNS TXT record (v=DKIM1; k=rsa; p=…) with a Copy button — no more running OpenSSL by hand.
    Passwords. All password boxes get a reveal (eye) toggle; the account editor and the quick-create form get a Generate strong password button (cryptographic RNG, copied to the clipboard); and the external POP3 fetch-account password is now masked instead of shown in clear text.
    Inputs. The auto-reply expiry is a date picker; numeric server settings and the collection editors use up/down number boxes; every editor dialog now obeys Enter (save) and Esc (cancel); and MX query / Diagnostics output has a Copy button.
    Window state. The main window remembers its size, position and maximized state between sessions, and a save-confirmation toast appears after saving.

Quality

The server core is unchanged since 6.2.6 and remains validated by the full regression suite: 898 of 898 tests passing, zero failures, zero inconclusive — including live SpamAssassin, ClamAV (real EICAR detection), DMARC evaluation against live DNS, and TLS 1.2/1.3 handshakes end to end.
Download

hMailServer-6.2.7-x64.exe (64-bit Windows installer). SPDX + CycloneDX SBOMs are attached.