how to transfer settings and rules between applications on multiple PCs?
Mailspring’s settings and rules are stored in:
- Linux/macOS:
~/.config/Mailspring/ - Windows:
%AppData%\Mailspring\
Copy that folder to the same location on the new machine (with Mailspring closed on both). Account credentials are stored in the system keychain, not in these files — you’ll need to re-enter passwords on the new machine, but all rules, templates, and preferences will carry over.