When comparing Claws Mail vs Nylas N1, the Slant community recommends Nylas N1 for most people. In the question“What are the best native e-mail clients for Linux?” Nylas N1 is ranked 6th while Claws Mail is ranked 7th.
Ranked in these QuestionsQuestion Ranking
Pro Low resource client
Claws Mail is a low resource e-mail client that is often default in low resource Linux distributions.
Pro Clean interface with 5 layout variants
Pro Has many plugins for extra functionality.
Pro Good support for Google's services
Pro Beautiful UI
Pro Open Source
Pro Has introduced features that are not available in better-known apps
Like a 'new generation' app - quite a revelation in simple addition of various emails from separate providers with different forms of password/2-step/other verification and sign ins - all failed by many better known apps on this list.
Con Interface looks old and setup is not easy
The icons as well as the rest of the interface look like an application from the early 90's, with this there is also no easy setup options built in like the more modern e-mail clients.
Con E-mail is synced in their own servers
aha - but Nylas is no longer N1 since January 2017.
This no longer applies!
Con High memory usage
Con Weak support
Bug fixes take too long to be released.
Con Custom IMAP accounts can not sync
Con High CPU usage
Con No more free version
Now 'Basic' is free. Basic is very good.
'Pro' is overkill for most users.