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Review Request #8902 - Created April 17, 2017 and submitted
We set custom mimetypes in the e-mail previews for HTML and plain text, but these weren't specifying a character set, causing the browser to fall back on a default and render UTF-8 content incorrectly. These mimetypes have been updated to explicitly specify the UTF-8 character set, fixing rendering.
Viewed UTF-8 content in the e-mail previews. Saw that they now render