On 07/05/2010 12:19, Wietse Venema wrote:
Patrick Ben Koetter:
* Simon Croome<scro...@solent.ac.uk>:
On 05/05/2010 17:42, Victor Duchovni wrote:
Here's the easier version...

Take a look at the "TABLE SEARCH ORDER" in man 5 transport. Here's an example:

# main.cf
transport_maps = hash:/etc/postfix/transports

# /etc/postfix/transports
firstname.lastn...@example.com          relay:lotus.notes.server:25
firstname1.lastna...@example.com        relay:lotus.notes.server:25
firstname2.lastna...@example.com        relay:lotus.notes.server:25
example.com                             relay:ocs.server:25
If you take the transport_maps solution, then you need to set up
a relay-recipient_maps table with the addresses of valid recipients,
as documented in

http://www.postfix.org/STANDARD_CONFIGURATION_README.html#firewall

If you believe that Sendmail was able to guess the addresses of
your local users, then I can assure you that it can't.

More likely, Sendmail was accepting all kinds of garbage from the
Internet, and your Sendmail queue was full of MAILER-DAEMON messages
all around the clock.

We cannot make that same mistake with Postfix (if we did then you
might just as well have stayed with Sendmail).

        Wietse
Hi,

Thanks for all your responses it seems that this might explain the issues we have had in the past whilst using sendmail, will look into taking the LDAP lookup from the domino directory.

Thanks again.

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