diff --git a/by-list.md b/by-list.md
index 4d04096..3331f1a 100644
--- a/by-list.md
+++ b/by-list.md
@@ -285,6 +285,7 @@
 - [mattermost/mattermost-push-proxy](https://github.com/mattermost/mattermost-push-proxy) - 
 - [mattermost/mattermost](https://github.com/mattermost/mattermost) - Mattermost is an open source platform for secure collaboration across the entire software development lifecycle..
 - [ktolonen/ultiorganizer](https://github.com/ktolonen/ultiorganizer) - Ultiorganizer is a web application for online score keeping of Ultimate events.
+- [thunderbird/stormbox](https://github.com/thunderbird/stormbox) - A webmail.
 
 ## knowledge
 - [TiddlyWiki/TiddlyWiki5](https://github.com/TiddlyWiki/TiddlyWiki5) - A self-contained JavaScript wiki for the browser, Node.js, AWS Lambda etc.
@@ -314,6 +315,7 @@
 - [silverbulletmd/silverbullet](https://github.com/silverbulletmd/silverbullet) - An open source personal productivity platform built on Markdown, turbo charged with the scripting power of Lua
 - [docmost/docmost](https://github.com/docmost/docmost) - Docmost is an open-source collaborative wiki and documentation software. It is an open-source alternative to Confluence and Notion.
 - [mattermost/mattermost-mobile](https://github.com/mattermost/mattermost-mobile) - Next generation iOS and Android apps for Mattermost in React Native
+- [thunderbird/stormbox](https://github.com/thunderbird/stormbox) - A webmail.
 
 ## linux
 - [linuxhw/DMI](https://github.com/linuxhw/DMI) - Collect dmidecode reports and find most popular CPU, RAM and battery
@@ -1138,6 +1140,7 @@
 - [outline/outline-icons](https://github.com/outline/outline-icons) - An iconset designed for the team knowledgebase Outline, but open to all. 
 - [BoidCMS/BoidCMS](https://github.com/BoidCMS/BoidCMS) - Flat file CMS for building simple websites and blogs
 - [ktolonen/ultiorganizer](https://github.com/ktolonen/ultiorganizer) - Ultiorganizer is a web application for online score keeping of Ultimate events.
+- [thunderbird/stormbox](https://github.com/thunderbird/stormbox) - A webmail.
 
 ## work
 - [oeg-upm/devops-infra](https://github.com/oeg-upm/devops-infra) - Public repository for an ontology network on DevOps infrastructure