Unfortunately, if this really is enciphered using an Enigma Machine, there is virtually zero chance that you could ever decrypt it without more information. An Enigma Machine uses a very complicated set of encryption criteria, and without knowledge of what settings were used for encryption, it is virtually impossible to decrypt. (Access to large amounts of encrypted messages and some known plaintext was the only way the British ever managed to crack any Enigma messages.)
I suspect that the word "Enigma" here doesn't refer to an enigma machine. Most likely the cipher is encrypted using some more basic cipher. But the ciphertext is very short, and the number of unknowns is too great, so without more information, finding a credible solution is unlikely.
Running the ciphertext through quipqiup gives a number of amusing potential solutions (my favourite is
MUSCLE OF ETHOS HILARITY), but nothing that seems credible.
Similarly, trying to solve using a French dictionary at rumkin.com yields nothing credible.
My suspicion is that unless your friend is willing to be more forthcoming and supply at least a couple of the following, this cipher will likely remain unsolved indefinitely.
- The cipher used
- A (much) longer ciphertext
- The language of the plaintext
- Some/all of the keys/settings required for the given encryption method