======================
to-Alabel convert of helo name
+- smtp transport
++ An "international" flag on the message?
++ An is-international expansion condition?
++ helo-time option handling
-conversion of utf-8 domains on input rfc5890
-- deconversion on forwarding
-- deconversion for trace headers
+++ conversion of utf-8 domains for DNS rfc5890
+-- MSA mode: convert on forward?
+
dsn handling rfc6533
logging
- international msg
- presentation of local-part in log
-- a log option?
encoding of local_part
-encoding transform string-expansions
+
Recieved-by header tracking info
- WITH protocol types get UTF8 prefix
+- use for logging also
forwarding checks rfc6530 7.1 -3-
- rcpt-time rejects get 533 mailbox name not allowed
- bounces (see dsn handling)
-expansions for to- and from-Alabel ? bug1567
+++ expansions for to- and from-Alabel ? bug1567
enhanced status codes? rfc5248++
VRFY
EXPN
+
+non-smtp input