This was indeed a sendmail tweak of the "MeToo" option.
(Thanks to all who so rapidly replied)
To sum up:
I added a line to my .mc file:
define(`confME_TOO', `TRUE')dnl
and rebuilt the cf file with m4. This adds the line:
O MeToo=TRUE
to the sendmail.cf file. Now alias expansion works
as expected.
It was really weird how this worked with a different
local delivery agent (mail.local under linux), but looking
at the sendmail configuration options, it makes perfect
sense why it is _supposed_ to work this way all the time.
Thanks again to everyone!
-Scott Larsen
slarsen(_at_)cascorp(_dot_)com
I've installed procmail 3.11pre7 as my local delivery agent
under sendmail 8.9.0, but am having some trouble with alias
expansion/delivery.
It seems that whenever someone sends mail to an alias
of which they are a member, they don't get a copy from
the alias!
I've tried replacing procmail with a "standard" local delivery
agent, and then everything works fine, so it seems to be
something in the interaction of sendmail and procmail.
Has anyone ever seen this?
Here's the appropriate section of my sendmail.cf file
(I'm using the "local_procmail" m4 FEATURE...)
Mlocal, P=/usr/bin/procmail, F=lsDFMAw5:/|@qSPfhn9, S=10/30,
R=20/40,
T=DNS/RFC822/X-Unix,
A=procmail -Y -a $h -d $u