Do not set content_subtype of the message to text/html.
Do not set content_subtype of the message to text/html.

Signed-off-by: Andrey Rahmatullin <a3b3b66f52fbce705a20809c3e7e1435d0ddc7a1@wrar.name>

philippWassibauer/templated-emails,philippWassibauer/templated-emails