Good news. There is a email client proposed for Ubuntu touch now. I will not further develop this branch. If you want a semi-working email client on ubuntu phone for now just like I am, here is a click package. http://ubuntuone.com/7CIQR2Joykvor2W9RhhPSR
Welcome to qmlTrojita, this is an unofficiant port of Trojita to QML which runs on Ubuntu phone. The original Trojita project is hosted on http://trojita.flaska.net/
To compile mkdir build && cd build && cmake .. && make The executable is build/src/ubuntu-emailclient-app, need to run in directory build/src/
Compile Dependancy: libqt5webkit5-dev
Run Dependancy: qtdeclarative5-u1db1.0 qtdeclarative5-ubuntu-ui-extras-browser-plugin qtdeclarative5-ubuntu-content0.1
To Test attachment, should have gallery-app installed for now