Hi, Fellow Gurus,

Could you guys please give me some advice on how to do the following:
in my company we have two groups of users - one group on an Exchange
mail server, and the other group on sendmail/imap Linux box. What I
want to do is to set up a smtp gateway that automatically relay users
to the correct mailhub, and at the same time relay outgoing emailsfrom
users in the internal network.

What I would like to know is what I do need to setup on the gateway
sendmail to look up which mailhub each user belongs to? I suppose the
brute force way would be to generate a mailertable - which needs to
contain a routing rule for every single username and aliases in the
company domain. Generating this mailertable would probably involve
writing a LDAP script to query the AD, as well as some sed's and awks'
with the /etc/passwd and /etc/aliases on the Linux mailhub. Before I
dive into this, I just throught that you guys might have an more
elegant solution. Any advice would be appreciated!

Thank you very much in advance for any advice!

Cheers,
ls

losheng wrote:

> What I would like to know is what I do need to setup on the gateway
> sendmail to look up which mailhub each user belongs to?

See the ldap_routing feature in Sendmail.

--
David.

"David F. Skoll" <dfs@roaringpenguin.com> writes:

> losheng wrote:
>
>> What I would like to know is what I do need to setup on the gateway
>> sendmail to look up which mailhub each user belongs to?
>
> See the ldap_routing feature in Sendmail.

Feature ldap_routing *can* be used with hash/btree/dbm maps instead of
LDAP lookups [some postmasters dislike using LDAP in simple cases].

URL(s):
http://www.sendmail.org/m4/ldap_routing.html

--
[pl2en: Andrew] Andrzej Adam Filip : anfi@priv.onet.pl : anfi@xl.wp.pl

Andrzej Adam Filip wrote:
> "David F. Skoll" <dfs@roaringpenguin.com> writes:
> >
> > See the ldap_routing feature in Sendmail.
>
> Feature ldap_routing *can* be used with hash/btree/dbm maps instead of
> LDAP lookups [some postmasters dislike using LDAP in simple cases].
>
> URL(s):
> http://www.sendmail.org/m4/ldap_routing.html
>

Hi, David and Andrzej,

Thank you. That looks like the solution I'm looking for. Now I've got
to dive into LDAP. Otherwise, for 100-120 mailboxes, I guess hash maps
might suffice, but at a quick glance, the information on sendmail.org
didn't seem to talk much about that option. I will have do more digging
around then.

Thanks again! Greatly appreciated!

ls

"losheng" <losheng@gmail.com> writes:
> [...]
> Thank you. That looks like the solution I'm looking for. Now I've got
> to dive into LDAP. Otherwise, for 100-120 mailboxes, I guess hash maps
> might suffice, but at a quick glance, the information on sendmail.org
> didn't seem to talk much about that option. I will have do more digging
> around then.

To get keywords for extented searches for "LDAPless ldap_routing" take a
look at the posts below:
http://groups.google.com/groups?q=au...ting+null+hash

--
[pl2en: Andrew] Andrzej Adam Filip : anfi@priv.onet.pl : anfi@xl.wp.pl