QuickMail v0.7.4 Release Notes

Released June 17, 2026 — downloads for this release

Download

Two options are available for v0.7.4:

Both downloads include the .NET 8 runtime — you do not need to install .NET separately.

New Features

Gmail Support via Google Sign-In

You can now add a Gmail account using your Google account instead of an app password.

Adding a Gmail account: Open the account manager (Settings → Accounts) and choose Add Account. Enter an account name, a sender display name, and your Gmail address in the Email / Username field. When QuickMail sees a Gmail address, it automatically selects Google authentication for the account — you do not need to set the authentication type yourself. Move to the Sign in with Google button and activate it; your default browser opens to a Google sign-in page. Complete the Google sign-in, grant QuickMail permission to read and send mail, then close the browser window. Back in QuickMail, activate the Add Account button to add the account, then close the account manager. Gmail’s IMAP and SMTP server settings are filled in automatically; you do not need to enter them.

You may see a message that no password was saved for the account. This is expected when you use Google authentication — there is no password to save, because Gmail signs in through your Google account rather than a stored password.

The Google sign-in itself is stored securely in Windows Credential Manager, the same store QuickMail uses for other accounts. The access token refreshes automatically in the background; you will not be prompted to sign in again unless you revoke access from your Google account settings.

Removing a Gmail account: Open Settings → Accounts, select the account, and press Delete. This removes the account from QuickMail and clears the stored credential from Windows Credential Manager.

Important: Google’s “unverified app” warning. When you sign in with your Google account, Google displays a warning that QuickMail is an unverified application and asks you to confirm you want to proceed. This is normal and expected — QuickMail has not undergone Google’s App Verification process, which can take several weeks and potentially require expensive third-party security assessment. You can safely ignore this warning and click Advanced → Go to QuickMail (unsafe) to continue signing in.

If you prefer to avoid this warning, Gmail accounts also support app-specific passwords: generate one from your Google Account security settings and use it with QuickMail’s standard Password authentication method instead of Google OAuth.

Grab Addresses: Add to Group

When grabbing addresses from an open message (Ctrl+Shift+G), you can now add the selected contacts directly to an address book group in the same step.

How it works:

1. Press Ctrl+Shift+G to open the Add to Address Book window.
2. The message’s addresses appear as checkboxes, all checked by default. Uncheck any you do not want.
3. Check Add to group to show the group options.
4. Choose an existing group from the Group combo box, or choose Create new group and type a name in the New group name field.
5. Press Save (or Enter). Each checked contact is added to your address book and, if you chose a group, added to that group.

If you type a new group name and leave it blank when Save is pressed, QuickMail announces “Enter a name for the new group” and keeps the window open. No contacts are saved until a valid group name is provided or you remove the name and save without the group option checked.

If you type a new group name that already exists, QuickMail does not create a second group with that name. Instead it tells you the group already exists and keeps the window open so you can enter a different name, or pick the existing group from the list. This prevents two groups with the same name — which could otherwise lead to sending to the wrong people.

Unique Group Names

Address book group names are now required to be unique, regardless of letter case (“Team” and “team” are treated as the same name). This applies everywhere groups are created or renamed — the Grab Addresses window, the Group Manager, and the Address Book. If a name is already in use, QuickMail tells you and leaves your text in place so you can choose a different name. Existing groups are never merged.

Grab Addresses: Tab Navigation Fix

Previously, Tab cycled through every address checkbox in the list, requiring many Tab presses to reach the Save or Cancel button. Tab now stops on the address list once — pressing Tab again exits the list and moves to the Add to group checkbox, then to the group controls, then to Save and Cancel. Arrow keys still move between individual address checkboxes within the list.

Bug Fixes

• Resource leak in compose windows. Each compose window left a timer handle open when closed because ComposeViewModel’s auto-save cancellation token source was never cancelled or disposed. The handle is now cancelled and disposed when the compose window closes.
• SemaphoreSlim handles leaked on app exit. ContactService and TemplateService each hold a SemaphoreSlim whose underlying WaitHandle was never released. Both services are now disposed on application exit.

Thank You to Contributors

Thank you to everyone who has contributed to QuickMail through code, bug reports, feature suggestions, and other feedback. Your contributions make the project better for everyone.

Internal

Google OAuth

• AuthType.OAuth2Google enum value; FeatureFlag.GoogleAuth (default on).
• IGoogleOAuthService / GoogleOAuthService: browser sign-in via LocalServerCodeReceiver (Google.Apis.Auth); access token refreshed automatically; refresh token persisted in Windows Credential Manager via CredentialService.SaveSecret / GetSecret / DeleteSecret.
• OAuthRouter: routes IOAuthService calls to MSAL or GoogleOAuthService by AuthType, so ImapMailService and SmtpService need only a one-line guard change.
• ConfigModel / ConfigService: [google] section reads GoogleClientId / GoogleClientSecret from config.ini; credentials are gitignored and supplied via GitHub Actions secrets in CI.
• AddAccountViewModel: auto-fills imap.gmail.com:993 (SSL) and smtp.gmail.com:587 when OAuth2Google is selected, matching the Microsoft auto-fill pattern.
• AccountEditorViewModel: SignInGoogleCommand (async, opens browser flow), IsGoogleOAuth computed property, updated AuthTypeIndex (0 = Password, 1 = Microsoft, 2 = Google).
• AddAccountDialog / AccountManagerDialog: Google OAuth combo item and Sign in with Google button, both gated by ShowGoogleAuthOption / FeatureFlag.GoogleAuth.
• AccountPropertiesBuilder, MainViewModel, AccountManagerViewModel: updated to handle OAuth2Google in auth display and sign-out paths.
• docs/privacy.html: privacy policy page hosted on GitHub Pages at https://kellylford.github.io/QuickMail/privacy.html; required for Google OAuth verification.
• StubGoogleOAuthService added to test project.

Grab Addresses

• GrabAddressesDialog shown modelessly (.Show()) instead of via .ShowDialog(). Modal nesting over a WebView2 host + editable text field + screen reader caused a hard UI-thread deadlock on focus. Modeless windows have no DialogResult, so Escape and Cancel are wired to Close() explicitly; Escape is guarded against the group combo’s open dropdown.
• Save_Click service calls wrapped in try/catch: failures are logged and announced (Result category); the dialog stays open for retry rather than crashing on an unhandled async void exception.
• UpsertContactAsync: set contact.Id for existing contacts so AddMemberAsync receives a valid ID.
• GrabAddressesDialogTests rewritten: 9 tests covering focus on open, Tab exit from address list, static group controls, modeless Escape-close, Save with new group, Save without group, empty-name validation, and duplicate-name rejection (case-insensitive).

Group Name Uniqueness

• ContactService.CreateGroupAsync and RenameGroupAsync reject a name that already exists (case-insensitive, OrdinalIgnoreCase) by throwing the new public DuplicateGroupNameException. The check runs inside the load lock so there is no check-then-create race. No merging is performed.
• All three group entry points catch it and announce a Result-category message, leaving the input in place: GrabAddressesDialog.Save_Click, GroupManagerViewModel (create + rename), and AddressBookViewModel (create + rename).

IDisposable

• ComposeViewModel.Dispose(): calls _autoSaveCts.Cancel() before Dispose() (prevents ObjectDisposedException in in-flight autosave tasks per the IDisposable rules in CLAUDE.md).
• ComposeWindow.OnClosed: calls _vm.Dispose().
• App.OnExit: ContactService and TemplateService promoted to private fields and disposed.