sendmail want certain users to go to different host

[OFC_EDM]

Our default mail setup is for mail, from an HP-UX server, to be sent to the Smart Relay which is an exchange server.

However I for certain emails I want the mail to be sent to a 2nd unix host instead of the Exchange server.

On this 2nd host I have a mail alias called cku and have setup sendmail to accept mail in the sendmail.cw (local host, hostname).

I try
echo test | mailx cku@2ndUXhostname
and the mail still attempts to go to the Exchange server instead of the unix host.

What am I missing?

[Rick Garland]

Look at the mailertable function. Based on the address you can have mail routed to the specified destination.


Check out the www.sendmail.org site. Lots of info available.

[OFC_EDM]

note the alias cku on the 2nd unix host is "not" a local user. It is just an alias in the /etc/mail/aliases file.

Cheers

[OFC_EDM]

Subtle difference:

UserA is a local user on host B
cku is a mail alias on host B. No local account is defined.

echo test | mailx UserA@hostb.domain.com
-> this works

echo test | mailx cku@hostb.domain.com
-> DOES NOT work

This difference is that cku is not a local user on the receiving server.

So do I need to modify something on the receiving server? (don't think mailertable applies does it?)

[Tor-Arne Nostdal]

What happens if you login to host hostb.domain.com and try to send a mail locally to this alias?
hostb# echo test | mailx cku@hostb.domain.com

Did you just enter the alias into hostb.domain.com:/etc/mail/aliases and forgot to run /usr/sbin/newaliases ???

[OFC_EDM]

Sending mail locally to the alias works.
I had run newaliases.

Cheers

[Doug O'Leary · Accepted solution]

Hey;

The way I understand it, you want all make except for cku@hostb.domain.com to go to the exchange server for relaying. cku@hostb.domain.com should be mailed directly to hostb... Is that correct?

If that's the case, R.Garland gave you the right answer:

For the first req, ensure your ^DS macro is set to the smart relay (which, it sounds like it already is).

For the second, add the FQDN of the hostb to the file /etc/mail/mailertable:

smtp:hostb.domain.com

Then, make the mailertable:

makemap dbm /etc/mail/mailertable < /etc/mail/mailertable

Restart sendmail and any mail directed to cku@hostb.domain.com should go directly there.

You can verify this by executing sendmail in rule testing mode:

sendmail -bt
> 3,0 cku@hostb.domain.com

Should tell you that it's going to hostb.domain.com.

> 3,0 dkoleary@olearycomputers.com

Should tell you that it' getting relayed through your smart host.

HTH;

Doug

[OFC_EDM]

see above