Thanks for the sample text.
Here's what I've found:
If I send a Plaintext message, it comes through, fine,
If I send an HTML message, without using HTML entities for things like, "é" "ç", etc, it doesn't work.
I filed a bug https://github.com/justingit/dada-mail/issues/114
and I will try to get that fixed. I'm not sure where the problem is coming from,