======================
-An "international" flag on the message?
-An is-international expansion condition?
+to-Alabel convert of helo name
+- smtp transport
-helo-time option handling
-dsn handling
+++ An "international" flag on the message?
+++ An is-international expansion condition?
+
+++ helo-time option handling
+++ conversion of utf-8 domains for DNS rfc5890
+-- MSA mode: convert on forward?
+--- mua-wrapper
+--- acl control?
+
+dsn handling rfc6533
logging
-- international msg
+++ - international msg
- presentation of local-part in log
+-- a log option?
encoding of local_part
-encoding transform string-expansions
-Recieved-by header tracking info
+
+++ 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
+- mail-time rejects get 550 mailbox unavailable
+- bounces (see dsn handling)
+
+flag in spool file
+
+++ expansions for to- and from-Alabel ? bug1567
+
+enhanced status codes? rfc5248++
+
+VRFY
+EXPN
+
+non-smtp input