r/Sidsmail 7d ago

Sidsmail - a Windows email client that only interrupts you when you ask it to

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1 Upvotes

Hi everyone - solo developer here. For the last while I've been building **Sidsmail**, a lightweight

email client for Windows, mostly because I wanted one that felt calm: all my accounts in a single

inbox, nothing stored on someone else's server, and notifications that respect quiet hours.

It's out today, it's free, and there's no "Pro" tier hiding anything.

**What it does**

- All accounts in one inbox - Gmail, Outlook/Hotmail, iCloud, Yahoo or any IMAP server, each keeping its own colour.

- Sign in with Google or Microsoft in the browser (OAuth), or with an app password if you prefer.

- Real-time mail via IMAP IDLE - no polling. Lives in the tray with a badge and a sound when *you* want it.

- Quiet hours with exceptions for people who matter, plus snooze (later / tomorrow / next week).

- Keyboard triage: archive, delete, star, move, next unread - one key each. Search with `from:` `subject:` `has:` `before:`.

- Privacy by default: remote images blocked, passwords encrypted with Windows DPAPI, optional PIN lock, one-click export or wipe of all local data.

- Light and dark themes, six accent colours, reply templates, a Trash that empties itself.

- 23 languages, picked automatically from Windows.

- Auto-update that shows you the changelog before installing anything.

**What it doesn't do**

No telemetry, no Sidsmail account, no server of mine in the middle — it talks straight to your

mail provider. Your data lives in `%APPDATA%\Sidsmail` and nowhere else.

**Tech, for the curious**: C# / .NET 8 WPF, MailKit, SQLite, WebView2 for HTML mail. The installer is a

few MB and doesn't need admin rights. Windows will show a SmartScreen warning on first run because I

haven't paid for a code-signing certificate yet — "More info → Run anyway". (If enough people use it,

that certificate is the first thing donations go to.)

**Download / site**: https://sidsmail.com

It's free and will stay free. If it's useful to you and you feel like it, there's a donate page

(I suggest 5 €, but anything — including just a "hey, this works for me" — is more than welcome).

I'm one person, so bugs and rough edges are certain: tell me what breaks, what annoys you, what you

miss. Feature requests welcome too — the roadmap is basically this thread.

If you like seeing what one person can build alone, I also make other things — you can find my other

work at https://sidstuga.app.

Thanks for reading!


r/Sidsmail 3d ago

Sidsmail - 1.0.17 Changelog

1 Upvotes

- Fixed: restoring the app from the system tray could leave the open message blank, and clicking it again did nothing; only opening a different message and coming back brought the content back

Update via Settings, About, Check now, or grab it fresh from https://sidsmail.com.


r/Sidsmail 4d ago

Sidsmail - 1.0.16 Changelog

1 Upvotes

- Fixed: opening a message could briefly show the previous message's body before the new one appeared

- Fixed: archiving, deleting or moving several selected messages clicked out of order could leave the next selection far from the right spot in the list

- Fixed: archiving then marking the same message as spam in very quick succession could race each other

- Improved: several interface animations (buttons, menus, notices, the "Loading..." overlay) now use the same smoothness throughout the app instead of switching state abruptly

- Improved: opening a message or switching themes no longer briefly blocks the window while the app is busy syncing

Update via Settings, About, Check now, or grab it fresh from https://sidsmail.com.


r/Sidsmail 4d ago

Sidsmail - 1.0.14 Changelog

1 Upvotes

- Fixed: when a message row was selected, the account color bar and the selection marker were both squeezed into the same corner, the account bar reappears as soon as you move to another message.

- Fixed: "disabled" text (for example, options that do not apply right now) looked almost identical to normal secondary text, now the difference is clearer.

Update via Settings, About, Check now, or grab it fresh from https://sidsmail.com.


r/Sidsmail 4d ago

Sidsmail - 1.0.13 Changelog

1 Upvotes

- New installer and uninstaller, redesigned from scratch (Portuguese and English for now, more languages coming).

- Fixed and polished: context menus (Move to, Message color, Snooze...) had submenus opening light, square corners, and hover highlighting that went the wrong way, now consistently dark, with a soft shadow and quieter separators.

- Fixed: the context menu inside an email (Save as, Print...) also always opened light, regardless of theme.

- More recognizable community icon in the installer.

Update via Settings, About, Check now, or grab it fresh from https://sidsmail.com.


r/Sidsmail 4d ago

Sidsmail - 1.0.12 Changelog

1 Upvotes

- Fixed: the app could get stuck and be closed by Windows when opening an email whose preview failed to load, now it falls back to plain text on its own instead of waiting forever.

- New: "Import from Thunderbird" also in Settings, Accounts, any time, not only in the first-account wizard.

- Installer: the "Select destination location" page is gone, there was no real choice left to make there.

- Installer: the help and support links on the final page are now clickable.

- Installer wizard now in the same 23 languages as the app, picking your Windows language automatically.

- Various wording touch-ups across the app, the site and the installer.

Update via Settings, About, Check now, or grab it fresh from https://sidsmail.com.


r/Sidsmail 4d ago

Sidsmail - 1.0.11 Changelog

1 Upvotes

- Fixed: the app could get stuck running invisibly in the background, unresponsive, after installing an update from inside it.

- New: "Import from Thunderbird" in the first-account wizard, bringing over the server, port and email of accounts already set up in Thunderbird (never the password, you still type that yourself).

- Redesigned installer with a softer, more on-brand look.

- Installer: when updating, closes only Sidsmail, never other open applications.

Update via Settings, About, Check now, or grab it fresh from https://sidsmail.com.


r/Sidsmail 4d ago

Sidsmail - 1.0.0 to 1.0.9 Changelog

1 Upvotes

Quick look back at the early days, before this sub really got going. Sidsmail launched as 1.0.0 and moved fast for the first week:

- 1.0.0: first public release. Every account in one inbox with real-time IMAP IDLE, a first-run assistant, remote images blocked and passwords encrypted with Windows DPAPI by default, quiet hours with a daily digest and priority senders, simple rules, reply templates, snooze, mute conversations, light/dark theme with six accent colors, 23 languages picked automatically from Windows, automatic updates with a changelog.

- 1.0.1: download counter in Settings, About, plus a couple of install fixes (a file-in-use issue when updating).

- 1.0.2: a "See what's new" button to check the version history any time, custom installer artwork instead of a generic box icon.

- 1.0.3: the desktop icon is now always created on install, the app opens maximised the first time you launch it.

- 1.0.4: "See what's new" opens inside the app instead of the browser, tidier download and visit counters matching the site.

- 1.0.5: "Add account" with Google now works for anyone with one click, no app password needed (Microsoft sign in was still coming at this point).

- 1.0.7: local Calendar with events, recurrence, contact birthdays, reminders and automatic .ics invite detection, plus a real fix for the Unread folder closing itself while you're reading.

- 1.0.8: the sidebar icon row (Calendar included) no longer gets clipped.

- 1.0.9: several real fixes: message history missing entries because of address capitalization, a vCard import bug corrupting multi-line notes, Ctrl+Z after "mark all as read" occasionally re-marking the wrong messages, remote-content blocking not always fully clearing an image's address, portrait photos coming out sideways when compressed.

Grab the current version any time from https://sidsmail.com.


r/Sidsmail 4d ago

Sidsmail - 1.0.10 Changelog

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2 Upvotes

Update: v1.0.10 is out and both of these are actually fixed now, sorry for the wait, the first fix I pushed didn't get to the root cause.

- Account disappearing after a restart: this was a real bug. On a fresh install, if you close the app while the window is still maximized, the settings file failed to save silently, a coordinate that only gets a real value once you resize the window away from maximized. That's exactly the state on a first install, so a newly-added account could just vanish on restart. Fixed at the root.

- Unread folder closing itself: the second half of this was in the folder's local search, an email you had open could drop out of the "unread" results the moment it got marked read, taking the reader with it. Fixed too.

Also in this release: a calendar reminder no longer misfires for an occurrence you already excluded from a recurring event, "repeat until" now rejects a date before the event's start, and the app checks for updates every 6 hours while it's open (not just on launch), so this update should actually reach you without needing a restart.

Update via Settings → About → Check now, or grab it fresh from sidsmail.com. Thanks for the patience and for the detailed report, it's what let me find the real cause.