If you are running 10.04 LTS, I would STRONGLY recommend that you DO NOT attempt to compile and install gmtp. Not because you can't, because you can -- in fact I did. In the process of compiling gmtp, you will probably need to download, compile and install the latest version of glib, libIDL, and GConf. This will wreck havoc with your current GNome setup on your machine. I ended up getting the
"Install Problem! The configuration defaults for the GNOME Power Manager have not been installed." error message and I was never able to clear it. Had to reinstall Ubuntu 10.04 and reconfigure the whole machine.