Bugfix: parse email with no text content #15
Merged
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Currently, v0.1.0 is failing to parse emails with no text content. This is problematic, i.a., when parsing DMARC reports from Google.
This PR changes the default behaviour in that case, where previously letters would raise an error "letters.ParseEmail: cannot parse unknown Content-Type" and now it treats the email body as an arbitrary attachment and tries to parse it to the attached files array.