There's an open issue to add PPG/MIME: https://code.google.com/p/k9mail/issues/detail?id=5864
There's also an open bounty which can be contributed to: https://www.bountysource.com/issues/815255-pgp-mime
You can get the latest K9 Alpha from here: https://github.com/k9mail/k-9/releases/tag/4.904
..and should use OpenKeyChain instead of APG, since its no longer maintained. http://openkeychain.org/ (also available on F-Droid)
This at least removes the need to push decrypt on every Message although thee might be Bugs.
You can get the latest K9 Alpha from here: https://github.com/k9mail/k-9/releases/tag/4.904
..and should use OpenKeyChain instead of APG, since its no longer maintained. http://openkeychain.org/ (also available on F-Droid)
This at least removes the need to push decrypt on every Message although thee might be Bugs.