Airmail is quite good, and AFAIK you can turn off some of its many features. <a href="http:&#x2F;&#x2F;airmailapp.com&#x2F;" rel="nofollow">http:&#x2F;&#x2F;airmailapp.com&#x2F;</a> (hint: You can use it for free if you use the beta version)<p>I was a huge fan of Sparrow (like you, I used it long after the updates stopped), then Airmail and Mailbox, but now I simply use the Gmail web app. I follow the zero inbox method strictly, so I only need to read&#x2F;archive&#x2F;reply&#x2F;search emails, and it does a decent job at it (except for search where it&#x27;s best in class), while being simple and non-confusing.