more from Thomas:

well it's the same problem as with the use of web standards, some people (like me) use the word naturally (and don't even know that it is the official translation), but most people still use 'email' mostly because they aren't sure they will be understood (like AOL TV commercial here...) so it's just a matter of using the word and it will spread. as of the pronounciation of 'mel', it is the same in french and english. and actually, people still using the word 'email' in french pronounce it 'ee'-'mel'...