FMail3
fmail3.appmac.frFastmail on your Mac, native windows and tabs, no Electron, no compromises.
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GyazMail
gyazsquare.comAn all-new, full-featured email client for Mac OS X built on Cocoa
2 apps
Fastmail on your Mac, native windows and tabs, no Electron, no compromises.
An all-new, full-featured email client for Mac OS X built on Cocoa