Using both this and k9 without Google play or any Google. They work great. But both of them, no longer allow storing your mail and/or attachments on 'external' or SD card. That is frustrating. This anti feature, just started in the last few months.
Could be a new API that needs to be supported. I just downloaded another app (NewPipe) that let me specifically choose some new API that made its external storage permissions work.
