Postfix/Sendmail and IBM Domino

[Maaz]

Dear Gurus

Email Domain: test.com

IBM Lotus Domino is running and configured for Mail and Messaging.
Now we want that Lotus Domino doesnt face the internet, but there will be a Linux based mail server(postfix or sendmail) that will recieve the mails from outside/internet, do some filtering etc, and then pass the emails to the Lotus Domino.

Since Lotus Domino doesnt face the internet directly, we also have to configure that postfix/sendmail also recives the emails from Lotus Domino, and send email to the appropriate destination/internet.

Now
1, what to do on postfix/sendmail so that it will forward/pass all the emails it recives from internet/outside for test.com to the Lotus Domino Server.
2, what to do on postfix/sendmail so that it will accept/forward/pass all the emails it recives from Lotus Domino to the internet/outside.

Regards
Maaz

[Steven E. Protter · Accepted solution]

Shalom,

sendmail DS directive is easiest.

DShostname_domino_server

or

DS
[192.168.0.10]

If that ip address is the ip of the Domino server.

That assumes the Lotus Domino server can accept smtp traffic, which I think it can.

Restart sendmail and you are done.

SEP

[Maaz]

Thanks SEP for help

DShostname_domino_server
or
DS
[192.168.0.10]

is the above configs are for both of my question 1 and 2. in sendmail?

Any1 Please also let me know for POSTFIX.

Thanks and Regards
Maaz

[Steven E. Protter]

Shalom Maaz,

This is so simple, I don't know if I'd bother with Postfix.

But here is a procedure to do the same thing.

http://www.informit.com/articles/article.aspx?p=24672

SEP

[James Ruddell, CISSP]

Maaz,

Please lock down your mail server to prevent spammers from using it as an open relay.

In Postfix, alter /etc/postfix/transport and add: test.com smtp:[xxx.xxx.xxx.xxx]:25

where xxx.xxx.xxx.xxx is the IP address of the Lotus server.

Add a line in main.cf "mynetworks = xxx.xxx.xxx.xxx/yy where xxx.xxx.xxx.xxx is the subnet where the Lotus server resides and yy is the number of bits of the subnet. For example, 10.10.10.0/24 is a class c.

Update Post fix by running "postmap /etc/postfix/transport" and restarting postfix.

I've subscribed to this thread and let me know if you need anything else.

Jim Ruddell, CISSP