Unknown User Error when using Sendmail

[Jeff Paciolla_1]

I did start and stop sendmail after adding the DS line. still no go.

Here is an example from my /var/adm/syslog/mail.log file

Apr 16 14:45:17 pikachu sendmail[21628]: starting daemon (8.8.6 (PHNE_17190)): SMTP+queueing@00:30:0
0
Apr 16 14:45:29 pikachu sendmail[21633]: OAA21633: from=root, size=234, class=0, pri=60234, nrcpts=2
, msgid=<200204161845.OAA21633@pikachu.acs-inc.com>, relay=root@localhost
Apr 16 14:45:29 pikachu sendmail[21635]: OAA21633: to=8773443591@airmessage.net, ctladdr=root (0/3),
delay=00:00:00, xdelay=00:00:00, mailer=esmtp, relay=airmessage.net, stat=Host unknown (Name server
: airmessage.net: host not found)

end example

I don't have an /etc/resolv.conf file since no dns usage

Thanks
Jeff

[someone_4]

Can you send emails form your server to yahoo.com or aol.com??

Richard

[Clemens van Everdingen]

Hi,

Probably that won't work either !

because of this:

relay=airmessage.net, stat=Host unknown (Name server
: airmessage.net: host not found)

This also points to the fact that this server can not find airmessage.net to relay your mail.

C.

[Clemens van Everdingen]

Hi,

How is dallasmail (exchange server) doing his lookups ?

If I do a nslookup from my server to airmessage.net I get the following answer !

[root@webserver log]# nslookup airmessage.net
Server: resolve1.xxxnet.nl
Address: 62.251.0.6

Non-authoritative answer:
Name: airmessage.net
Address: xxx.xx.xx.xx (replaced that)
So this means at least that my webserver can do nslookup to your airmessage.net.
So maybe we need the resolve.conf file to point to some outside dns server to do the lookup !

C.

[Jeff Paciolla_1]

I can send emails to username@yahoo.com with no problems.

Thanks
Jeff

[someone_4]

If you can send a message to yahoo.com that means that you can resolv to yahoo.com you might want to look at your mail relay for the problem.

Richard

[Clemens van Everdingen]

Hi,

Do you get the similar output from this:

[root@webserver log]# nslookup yahoo.com
Server: resolve1.hccnet.nl
Address: 62.251.0.6

Non-authoritative answer:
Name: yahoo.com
Addresses: 66.218.71.112, 66.218.71.113

C.

[Jeff Paciolla_1]

I might have misunderstood the question earlier. I can send emails to username@yahoo.com from my own username@companyname.com, but if I try to send an email to username@yahoo.com from the HP-UX box it does not work.

The only emails that work from the HP-UX box are ones that go to a local address within my company's domain.

Thanks
Jeff

[Clemens van Everdingen]

Hi,

Can you post the output from nslookup dallasmail !!

C.

[Clemens van Everdingen]

Hi again,

Can you also do a nslookup from dallasmail to airmessage.net ?

C.