Mailplane is now fully localized in Spanish. It's the fifth language next to Japanese, French, German and English.
The famous Fantastical calendar app will integrate with Mailplane in one of their next updates. This update lays the groundwork.
Support & Feedback
`Help > Support & Feedback` uses replies.io to handle support requests instead of composing a message. It makes it easy to send screenshots and screen-recordings next to preferences and the log file.