Some more content-types

Author: amatsuda

app/models/message.rb

@@ -71,12 +71,14 @@ def from_mail(mail, list, list_seq)
       attachments.attach(io: file, filename: part.filename, content_type: part.content_type)
     else
       case part.content_type&.downcase
+      when 'application/pgp-signature'
+        # ignore
       when 'application/ms-tnef'
         file = StringIO.new(part.decoded)
         attachments.attach(io: file, filename: part.filename || 'noname', content_type: part.content_type)
-      when /^text\/plain/, /text\/enriched;/, nil
+      when /^text\/plain/, /text\/enriched;/, 'message/rfc822', nil
         (self.body ||= '') << Kconv.toutf8(part.body.raw_source)
-      when /^text\/html;/
+      when /^text\/html/
         (self.html_body ||= '') << Kconv.toutf8(part.body.raw_source)
       else
         puts "Unknown content_type: #{part.content_type}"