Very Computer

Is is possible to define a group of users that have full internet e-mail
capabilites and another group that can only send mail locally (other
accounts on the local machine only).
If it is, how trivial/non-trival is it?

Thank you in advance,
Blair

I am resubmitting this question because of the deafening silence on it.

Is is possible to define a group of users that have full internet e-mail

capabilites and another group that can only send mail locally (other
accounts on the local machine only).  If it is, how trivial/non-trival
is it?
Can I define a fake or hidden domain for none internet users?

If this can't be done please say so.

Thank you in advance,
Blair

There might be easier ways of doing this but I can think of one. You
probably should check http://www.sendmail.org/ first if you havn't
already done so. It has a lot of useful answers there.

The user database functionality can probably be coerced into doing
this for you. This can allow you to re-map the From: line and change
the maildrop for each user eg:

pat:maildrop            pat

This would change the From line for user pat and test and forward mail
for user test to the given location. For this to work you have to add
some stuff as given in the FAQ. (I'll paste it at the end).

My feeling is you can use the anti-spamming and forwarding rules in
the recent sendmail versions to allow forwarding only from people from
my.domain and exclude the localonly users. As I havn't played with the
recent forwarding rules I can't be more specific but here is the m4
stuff to do envelope re-writing using the user database.

Add these into your site.mc file in the sendmail-cf/cf directory.

dnl# this line near the top.
define(`confUSERDB_SPEC',``/etc/userdb.db'')

dnl# and these at the bottom after the MAILER lines.
LOCAL_CONFIG
# For the Local address rewriting:
# Define our userdb file for FQDN rewrites
Kuserdb btree -o /etc/userdb.db

LOCAL_RULE_1
#########################################################################
### Local Ruleset 1, rewrite sender header & envelope using userdb map ##
#########################################################################

S1




R$+ ?? $+               $>3 $2                          Found, rewrite

As I mentioned, this is from the sendmail faq so if the usenet mailers
grundge this up you might want to get it from there.

Hope this helps.

--
Pat.Thoyts | reply to me at BBSRC dot ac dot uk or rot13 the Reply To:
PGP key at http://www.geocities.com/Yosemite/Rapids/1661/resume.html
--- RFC1036 can stuff it until it supports some anti-spam measures ---