Feature | Claws Mail | Spark |
---|---|---|
Built-in RSS reader | ||
Multiple languages | ||
Content Filtering | ||
Customizable | ||
Extensible by Plugins/Extensions | ||
Support for IMAP | ||
Integrated Email Client | ||
Lightweight | ||
Multiple Account support | ||
Export to PDF | ||
Calendar integration | ||
Clean design | ||
Email scheduling | ||
Exchange | ||
Organize mails | ||
Postpone email reception | ||
Smart inbox | ||
Snooze mail | ||
Sync across Devices | ||
Automatic Backup | ||
Built-in themes | ||
Built-in translation | ||
Encryption | ||
Ad-free | ||
Configurable | ||
Encrypted chat | ||
Address book integration | ||
Built-in Calendar | ||
Unified inbox | ||
Email tracking | ||
Undo send | ||
Asana integration | ||
Sync Contacts | ||
Bundled with macOS | ||
CalDAV | ||
CardDAV | ||
Encrypted Email | ||
Gantt-charts | ||
Kanban boards | ||
Work Item Tracking | ||
Agile boards | ||
Box.com integration |