@Mario-Jakovina said in ONLYOFFICE has released ONLYOFFICE Docs version 7.1.:
(btw - I hate emails as a communication tool)
I'm an "email first" person, it's my preferred tool for everything communications related. DeltaChat is great and is a WhatsApp / Telegram style chat client built on top of email. (That's actually a form of email client to check out just because it is interesting to see it and realize it is a mail client.) I've run email hosting businesses and run email for one of the world's biggest companies, so I'm pretty passionate about email 🙂
Zoho is definitely my number one. But it is proprietary.
If you want to see open source clients in action, I'd recommend starting with MailCow to see what is out there. RoundCube is big, too.