BackendSide WebMail

Changelog

Full release history and version notes for BackendSide WebMail – a self-hosted IMAP / SMTP webmail client for Linux, shipping as a single self-contained binary.

Build numbers are continuous across all packages; the version stays at 0.1.0 until the first tagged release. Newest builds appear at the top.

Build 019

Latest 2026-05-26

Added

  • New brand logo. The login page and the in-app top bar now show the BackendSide WebMail rectangular logo instead of the earlier generic mail icon and wordmark.
  • Footer. A small © backendside.com footer appears at the bottom of every page — light on the login screen, dark on the in-app screens — with a link to backendside.com.

Build 017

2026-05-26

Added

  • Send attachments. A paperclip button has appeared in the compose window. Pick one or more files; each shows up as a chip with its filename, size, and a remove (×) button. Total size is shown at the end of the list and turns red if it goes over the 25 MB limit. Works for new messages, replies, forwards, and drafts.

Build 016

2026-05-09

Packaging

  • First .rpm package shipped alongside the existing .deb. WebMail can now be installed on AlmaLinux / RHEL 10 in addition to Ubuntu / Debian. No functional changes to the app itself in this build.

Build 015

2026

Added

  • Self-hosted servers with self-signed TLS certificates can now be used. The predefined Local / Self-hosted entry and the custom-server login form accept certificates that don't match the connection hostname (for example, when reaching the server via localhost or a raw IP address).

Build 014

2026

Added

  • Loading spinners while the message list is fetching after a folder switch or first login.
  • Loading spinner while a message is being opened.
  • "Load more" footer at the bottom of the message list now shows a spinner instead of plain text while paging.
  • Login page: show / hide toggle (eye icon) for the password field.
  • Compose window polish: read-only "From" field, "Cc" hidden behind a toggle until needed, "Discard" button with a trash icon.

Build 013

2026

Changed

  • New visual design. Navy and coral color palette, split-screen login, three-pane app layout (folders / message list / message view) with a floating compose popover. Inter Variable and JetBrains Mono fonts.

Build 012

2026

Added

  • The login page now exposes a Custom server option by default, so any IMAP / SMTP account can be used without an administrator editing config files.
  • After installing or upgrading the package, the installer prints the full URL you can use to open WebMail in the browser.

Build 011

2026

Changed

  • Switching back to a folder you already had open is now instant when nothing new has arrived — the message list is no longer re-downloaded in that case.

Build 010

2026

Added

  • New mail now appears in the inbox automatically. You no longer have to refresh the page; the folder list and unread badges update on their own as messages arrive, are moved, or are deleted.

Build 009

2026

Changed

  • Faster overall response when clicking around. The app keeps a small pool of open mail-server connections per session and reuses them instead of re-connecting on every action.

Build 008

2026

Security

  • Login is now protected against automated guessing — too many login attempts from the same place in a short period are rejected.
  • Stronger protection against malicious websites trying to act on your behalf in the background.

Build 007

2026

Fixed

  • Outgoing messages with accented characters, non-Latin scripts, emoji, or very long lines are now encoded correctly and arrive intact.
  • Incoming messages in a wider range of character sets (Cyrillic, CJK, Greek, Hebrew, etc.) are decoded correctly.
  • Folder roles (Sent, Drafts, Trash, Spam) are detected correctly on a wider range of mail servers, regardless of how they name folders.

Build 006

2026

Security & Fixes

  • WebMail refuses to send your password in cleartext when the mail server has not offered an encrypted connection. (Administrators can opt out for testing on isolated networks.)
  • Deleting a message now removes only that message from the server, never anything sitting next to it.

Build 005

2026

Security

  • Security fix in the HTML email viewer.
  • Security fix when composing outgoing messages.

Build 004

2026

Added

  • Unread count badges next to each folder in the sidebar.
  • Unread count shown in the browser tab title: (3) WebMail.
  • HTML emails no longer load remote images automatically. A "Load Images" button appears at the top of any message that has them.
  • Phone / tablet layout: sidebar slides in from the left as a drawer, message view slides in from the right, top bar gives you a hamburger menu and back button.
  • Keyboard shortcuts: j/k next/previous, n new, r/a/f reply/reply-all/forward, d delete, s star, u mark unread, / focus search, ? full shortcut list, Esc close.

Build 003

2026

Added

  • Search bar above the message list. Filters by keyword, sender, date range, and unread status. Results appear as you type (after a short pause).
  • The message list now loads in pages as you scroll, instead of being capped at 50.
  • Mailbox storage usage bar in the sidebar footer (for servers that report it).

Build 002

2026

Added

  • Reply, Reply-All, and Forward buttons. The quoted / forwarded text is inserted into the compose window automatically.
  • Star, mark-unread, mark-answered, and other flags can be toggled from the message list and message view.
  • Sent messages are now also saved to your "Sent" folder on the server.
  • Drafts can be saved to the "Drafts" folder.
  • Folder management: create, rename, and delete folders from the sidebar context menu.
  • CC field in the compose window.

Build 001

2026

Added

  • Delete and Move-to-Trash actually remove the message on the server.
  • Folder icons and ordering based on each folder's role (Inbox, Sent, Drafts, Trash, Spam, etc.), detected automatically.
  • Messages are parsed correctly when they have multiple parts — plain text, HTML, and attachments are all extracted.
  • Attachments can be downloaded.
  • "To", "CC", "Reply-To", and the flagged star are shown in the message view.