lib/imap/backup/serializer/appender.rb in imap-backup-11.1.0 vs lib/imap/backup/serializer/appender.rb in imap-backup-12.0.0

@@ -27,10 +27,10 @@
       end
 
       rollback_on_error do
         serialized = to_serialized(message)
         mbox.append serialized
-        imap.append uid, serialized.length, flags: flags
+        imap.append uid, serialized.bytesize, flags: flags
       rescue StandardError => e
         raise <<-ERROR.gsub(/^\s*/m, "")
           [#{folder}] failed to append message #{uid}: #{message}.
           #{e}:
           #{e.backtrace.join("\n")}"