======================
-to-Alabel convert of helo name
-- smtp transport
+++ to-Alabel convert of helo name
+++ - smtp transport
++ An "international" flag on the message?
++ An is-international expansion condition?
- apply to a-label or utf8 form?
dsn handling rfc6533
+- ORCPT param: utf8 vs. unitext encoded
+-- to/from unitext expansions ( foo\x{HEXPOINT} - 2-6 hex digits )
logging
++ - international msg