======================
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?
+--- mua-wrapper
+--- acl control?
+
+++ flag in spool file
+
+retries
+- apply to a-label or utf8 form?
+
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
-- WITH protocol types get UTF8 prefix
+
+++ 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)
-
-expansions for to- and from-Alabel ? bug1567
+++ expansions for to- and from-Alabel ? bug1567
enhanced status codes? rfc5248++
VRFY
EXPN
+
+non-smtp input