v5.3.7

Changes v5.3.6...v5.3.7:

• Change the default rate limit set for requesting @ProtonMail API endpoints from 300 to 200 (c946948).
  • The value = 300 respected by the app for years was good enough for stable operations. But at some point in May 2026, Proton changed their API rate limit to 220 requests per minute, so the app had to respect the new value to keep working reliably. This mostly matters for local store mode usage, where batch fetching is a normal thing.
  • If needed, the value remains manually configurable - see fetching.rateLimit.maxInInterval2 value in the config.json file (file located in the app settings folder).
• Fix attachments duplication during EML export from the local store mode (8adc687, #771). No data loss was happening, just data duplication.
• Update project dependencies. Including the @electron and packaged Proton Web Clients stack.

The Apple Silicon/M1 ARM64 package requires xattr -d com.apple.quarantine /Applications/electron-mail.app command execution.

Update 2026-06-15: Replace original broken package electron-mail-5.3.7-linux-amd64.snap / sha256:777888d29a772a9985dd1998fb270bfba6878501a8663f5de128831164f2f791 with fixed version. The working/updated version is available at https://snapcraft.io/electron-mail (the broken one was not published there).

Build log link (except Snap package): https://github.com/vladimiry/ElectronMail/actions/runs/27381834601
Build log link for Snap package: https://github.com/vladimiry/ElectronMail/actions/runs/27513216763