`policy=SMTPUTF8` seems to break without specifying SMTPUTF8 in mail_options when actually sending the mail
(can't validate this because no server I tried seems to support that)
The `default` or `SMTP` policy work fine. Stuck to `SMTP` for CRLF line endings - default only does LF
Can get away with just changing this for SendMailContext().get_message_object(), but seemed better to standardize it
Non ASCII characters in the subject break completely, for example hindi characters get replaced by `?`
Signed-off-by: Akhil Narang <me@akhilnarang.dev>
1147c8bbed