I use FairEmail. Everything works well and it’s clearly privacy focused. It doesn’t load anything except the text by default, it blocks tracking images, it lets you review every link (and even gives you the option to check who owns the URL) before you open it.
It’s rather expensive for a Android app and the set up isn’t the easiest out there but overall I really like it!
Thanks for the reply and the tips!
I had a quick look at Bluemail. While it certainly looks to be an interesting solution, I couldn’t find that it was open source. I prefer, as long as I can and as much as I can, to use FOSS solutions.
But I will keep a note of just in case. Thanks again!
I totally understand that. But in my case, It can happen from time to time, that I am away from home for a somewhat extended period of time with only my mobile device. So for those rather rare cases I could use an email client on my phone. Then again I could use a web-browser as well
My answer to your original question:
I am using K-9 for years now (and the rest of my family too). Recently they changed a lot in the UI. Some well known and often used functions where deleted. But in the end it is much better then e-mail clients of Samsung etc.
I am using FairEMail too. My biggest concern is, that some e-mail does not really look like it should. Especially e-mail with HTML is very different to Thunderbird or my webmail like Roundcube or Rainloop.