Feb 22nd 2014
After Internet Explorer updates to IE11 it introduces a rather annoying bug into Outlook. Typed emails often get cut off mid sentence when you click Send ! So only part of the email gets sent !
What I think is happening is that Outlook is reverting to a previously autosaved copy before sending.
Removing the IE11 update would probably fix it but perhaps the easiest way is to disable the "Autosave unsent email" option in Outlook.
Tools, Options, E-Mail Options, Advanced E-Mail Options, and disable the "Autosave unsent" option.