Good. I have my on plugin for overridings, so I will hook into filter
em_get_currencies and reset EUR to
€ - just hope it does not actually display
€ in the email.
But wait, what will happen with plain text emails ?
for text emails, only true_symbols can work and no HTML entity.
And I just realised that the email was actually:
Content-Type: text/plain; charset="utf-8"
The only way out is to for now use EUR as a symbol as a workaround. So, there is still some charset mapped wrongly..... (e.g. packing 8859-1 into a UTF-8 container)
Thanks anyhow for the location and the workaround hint