From: Howard E. Arnold (arnoldh@celerent.com)
Date: Wed May 22 2002 - 11:35:01 EDT
The problem ended up being a wrong setting in my access.db. I had RELAY
instead of OK on the clients entry. Now it seems to be working find except
I'm getting a undisclosed-recipients in the To: field when I read the mail
message from our ISP.
Original Message:
I recently asked about the setup of a 5.1a cluster as a mail client to our
ISP, question follows, and I got responses back saying that it was most
likely in the ISP's setup not allowing relaying. Since that time I have
register our domain with our ISP and had them add an MX record for the 5.1a
machine. The cluster has now been setup as a mail server and everything
seems to be working fine.
Now I have another 5.1a box that I would like to setup as a mail client and
use the newly setup mail server as the relay to the internet. I installed
the newest sendmail on the client from the Internet Express 5.8 kit. I can
send mail to the server fine, but when I send mail to the internet from the
client it fails. On the server when I do a mailq I see that I am getting a
Deferred: 451 <??????>... unresolvable host name from the client. The client
is not registered on DNS so I think that is what the error is indicating. To
fix the problem I went into the Internet Express software on the server and
checked the box to allow unresolvable domains, but I still am receiving the
error. Is there a way to determine if this is set by using sendmail?
After installing Internet Express I'm not exactly sure which files get
modified. In this conference other people have modified their *.m4 or their
*.mc files to include the entry FEATURE('accept_unresolvable_domains')dnl.
Would this be the same as the check box to allow unresolvable domains?
Thanks again,
Howard
OLD Question
I have a Tru64 5.1a cluster sitting behind our firewall and would like to
use our ISP's mail server to send out our emails. I have installed the
Internet Express software and have configured the SMTP client using the ISP
smtp mail server.
I have done some test using the following commands using telnet:
telnet ourinternetnode 25
HELO ourinternetnode
MAIL FROM: user@ourinternetnode
250 .. Sender OK
RCPT TO: user@someotherdomain
550 Relaying Denied
Now am I correct in assuming that this message is coming from our ISP's smtp
mail server?
I ran a quick test using Netscape on the cluster and this seem to work. I
used our ISP's mail server and our ISP's SMTP server in the configuration.
Did this work because Netscape is using pop mail?
What I'm trying to do is set up an application so that it can mail from the
cluster, but use the ISP's mail server to send out the mail. This way it
looks like it is getting sent from the ISP.
Howard Arnold
Consultant Engineer
Email: arnoldh@celerent.com
Phone: (603)685-6060 ext 206
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