As so many of you pointed out, this was really a sendmail question rather
than a Sun-specific question. (Though I got a fair few "me too" answer).
My original query:
> I have been trying to work out how I can make sendmail route:
>
> john@x.y.z and
> john@a.b.c
>
> to different usernames on a single machine where the MX for both domains is
> the same machine. I have tried using the DB extensions in sendmail 8.6.12
> but haven't been able to get anything to work right. (Sure, it is easy to
> get x.y.z and a.b.c to both be "local", the LHS is the problem.)
There is more than one way to do this (explicit rulesets for each user, for
one), but I append what I think describes the solution most succinctly.
This is also available on the web at:
http://www.josnet.se/projects/mbt/mbt.txt. (Note that you need to use
sendmail V8 for this.)
Thanks to all who responded and sorry for the delay in summarising.
Date: Fri, 10 Nov 1995 16:25:14 +0100
From: Johan Svensson <johan@josnet.se>
To: sendmail@sendmail.ORG
Newsgroups: comp.mail.sendmail
Subject: Answer: How do I manage several domains with sendmail?
This is a contribution (if wanted) to the sendmail FAQ.
----------------------------------------------------------------------
* How do I manage several domains with sendmail V8?
If you want to provide mailservice to several domains and be
able to add identical names across different domains (example:
user@a.dom.ain mb1@dom.ain
user@b.dom.ain mb2@dom.ain
user@c.dom.ain mb@outer.space
you may accomplish this by using an external database in
conjunction with minor Ruleset rewriting in sendmail.cf. Many
ISPs (Internet Service Providers) has asked me and here's a
general solution (you may combine it with userdb's if you
need to).
Here it goes:
1. Make a textfile (I usually make one for each domain and
concatenate them before database-compilation) with the
following structure:
user@a.dom.ain mb1@dom.ain
user@b.dom.ain mb2@dom.ain
user@c.dom.ain mb@outer.space
The LHS (Left Hand Side) is the mail-adress of a particular
user and the RHS is the corresponding mailbox. An example from
the that might apply to the real world:
webmaster@josnet.se wm.list@eowyn.josnet.se
webmaster@client1.se joe@client1.se
webmaster@client2.se anne@another.provider.se
webmaster@client3.se joe@client3.se
joe@client1.se c1_joe@mail.josnet.se
joe@client3.se joeuser
Note that you have to spell out the complete email-address
in the LHS entry. The RHS entry may be either a local address
(for example 'johan' if that account exists) or a complete
email-adress on another system (or a domain that the server
recognizes as local for that matter).
2. Compile the textfile into a database:
makemap hash mbt.db <mbt
You may you use other lookup-methods than hash (btree for
example). The resulting database is mbt.db in this example
and the input is the textfile mbt.
3. Add a few lines in sendmail.cf:
A. In the beginning (typically in the "local info" section or
together with the user database option in the "options"
section):
# Declare mbt as a hash-lookup database:
Kmbt hash /etc/mail/mbt.db
B. In the Ruleset 98 section (local part of ruleset 0):
# Use mailboxtable-database:
R$+ < @ $+ . > $: $1 < @ $2 > .
R$+ < @ $+ > $* $: $(mbt $1@$2 $: $1 < @ $2 > $3 $)
R$+ < @ $+ > $* $: $(mbt $2 $: $1 < @ $2 > $3 $)
R$+ < @ $+ > . $: $1 < @ $2 . >
4. Restart sendmail:
You must do this in order to reread the cf-file.
5. Up and going!
6. Test with sendmail -bv or sendmail -bt
----------------------------------------------------------------------
Regards,
__________________________________________________________
Johan Svensson Email: johan@josnet.se
Tel: +46-46-320425
Fax: +46-46-188445
Josnet Internetworking AB
Skarpskyttev. 7, 226 42 Lund, SWEDEN
URL: Josnet Home Page
--end
This archive was generated by hypermail 2.1.2 : Fri Sep 28 2001 - 23:10:51 CDT