Content files can be translated by affixing the locale code to the file name. We need to apply the same technique to translate Mail template files.
People are translating the mail templates themselves using the twig filters. This is a bad idea because when the mail is processed in a queue, it loses the locale setting.
I think this could be implemented by hooking into the "mailer.beforeSend" event and modifying the $view parameter in the event handler
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I think this could be implemented by hooking into the "mailer.beforeSend" event and modifying the $view parameter in the event handler