Development

Mailsync Development Development of Mailsync, Mailspring’s C++ core. Localization Mailspring translation and localization. Themes Development Development of Mailspring themes. Plugins Development Development of Mailspring plugins. Mailspring Development Development of the actual Mailspring app.

Topic	Replies	Views	Activity
Contribution Workflow Development meta-documentation We use Discourse for bug reports, feature suggestions, and all discussion thereof. When it’s time to work, however, we use GitHub for actual development. If you want to work on an issue, here’s the workflow: Step 1: Cr…	1	1045	February 25, 2021
About the Development category Development	1	901	January 12, 2021
How to customise/override `email-frame.less` or inject styles inside the message iframe? Themes Development message-viewer	2	649	August 29, 2025
Calendar Release Date? Development calendar	4	2318	August 26, 2025
Theme Starter theme does not fix dark body view like the builtin dark theme Themes Development	0	63	August 22, 2025
Found Plugin/Encryption Icons in static Folder – But Where’s the Code Behind Them? Development	0	78	August 5, 2025
STILL no update on creating groups and importing contacts? Development	0	122	June 13, 2025
I want Help : Custom Plugin to Auto-Tag Incoming Emails Based on Keywords? Development	0	249	April 21, 2025
Where do things live on Linux? Themes Development	2	1117	October 28, 2024
Is this project dead? Development	23	5356	October 25, 2024
Error when attempting to run mailspring from source Development windows	2	328	September 4, 2024
Custom theme (dark) does not inject css into the email body (iframe) Themes Development theme	2	1883	September 3, 2024
Starred folder with counts Plugins Development	1	826	June 18, 2024
Where is the macos share extension implemented? Development macos	0	464	June 7, 2024
Could Someone Give me Advice on Implementing Custom Email Templates in Mailspring? Development	1	435	May 7, 2024
[pl-PL] polish localization improvement Localization	1	483	January 9, 2024
Development question Development	2	495	November 14, 2023
Building on Windows Mailspring Development windows	3	1175	November 13, 2023
Plugin for TeX math formula rendering with MathJax Plugins Development interface , message-viewer	0	569	August 12, 2023
Need help for reimplementation of the Mailspring API Development	1	837	March 18, 2023
"Mailspring could not find the mailsync process" in dev build Development	4	1858	October 29, 2022
Contribute to Calendar Development calendar	2	1140	October 8, 2022
Feedback/code review on two light themes? Themes Development theme , interface	1	1101	July 31, 2022
How To Build Mailsync? Mailsync Development meta-documentation	0	1273	February 8, 2021
Developer Tools not appearing Themes Development	1	631	April 22, 2022
Deleting a group of mails Development	0	479	April 1, 2022
Backup user files can skip which mailspring files? Development	3	767	March 13, 2022
Hungarian translate problem Localization	0	740	February 6, 2022
Electron 12 Migration Mailspring Development	7	2606	January 15, 2022
Npm install fails: terminate_handler not declared within "std" Development linux	2	1215	November 21, 2021