exit 0
end
+exit 0 unless from.active?
exit 0 unless token == digest[0, 6]
exit 0 if date < 1.month.ago
-message.update(:message_read => true) if message
+message&.update(:message_read => true)
-mail = Mail.new(STDIN.read
+mail = Mail.new($stdin.read
.encode(:universal_newline => true)
.encode(:crlf_newline => true))