For all of us is known that the eMail App in macOS and iOS is not the best and is far from competition. I have been looking for the most complete of them and tried (with my Google Account, both personal and work):
What email client are you using currently?
- Airmail: I liked it at first glance, however ...
- found issues with synchronization between devices ie: mark an email as read on macOS but iOS still having the same email as non-read leading me to open the application on my phone and mark the email as read there.
- long-press shortcuts do not work from the lock screen on my phone: I tried to delete emails from the lock screen by tapping on "Trash" and surprise the email still on my Inbox
- email rules do not play nicely
- Microsoft Outlook:
- email rules do not play nicely
- lacks integration with Zoom Calls on the calendar
- lacks integration with Fantastical Calendar
- latest version s****ks
- Spark:
- lacks integration with Fantastical Calendar (I was in contact with Fantastical support and I was told Spark does not want to support Fantastical, shame on them)
What email client are you using currently?