1) Given my email, produced via a mailchimp online editor.
2) I go to my openEdX, log in as administrator of the MOOC. Then got to My MOOC > INSTRUCTOR > EMAILS, in order to send my email. First a test to myself, later to my 2000 mooc students.
3) The email I receive in my inbox is CUT HALF WAY. The bottom part is all missing.
QUESTION : What is going on there ? How to fix this ?
Look into your code for the first paragraph which disapeared. It's likely the buggy part.
For this case, I can see the first disappeared sentence is :
Astuce : Pensez à inviter NudiMooc à suivre votre BLOG
My eyes are catched up by the strange sign, which is a rare unicode character.
Delete this exotic sign from your email / html5 code, and it will work again. I tested it by sending to myself. Horray ! The corrected code without the lightbulb was complete !! :D
OpenEdX processing may crash on this string. But because there are some witty security, the previous, valid text is kept.