1. ``+'' is not the de facto standard; qmail's ``-'' is in wider use by
several measures. (The separator is configurable by the sysadmin, but
most people stick to dash, which I recommend for a variety of reasons.)
IFF subaddressing were to come to pass, then ...
I would second the use of dash because I use it, and have
seen others use it regularly, as a delimiter between application name
or ID and the version or release. That is, there is precedent for
dash to be used as a marker between specific and non-specific:
bash
bash-1.14
bash-2.0
looks visibly like
troth
troth-dnrc
But should I accept these?
troth-vmesa-l
troth-ietf-822
I would NOT like to see a slash used here, but there's
near precedent for that too. (HP's OpenMail; others?) Period
(dot) and underscore seem right out and comma would be difficult.
Maybe it should be list!user ... ;-)
--
Rick Troth at La Casita, Houston, Texas, USA