Mails sent to local mail addresses doesn't work

[Carles Viaplana]

Hello,

I can't send mails to local addresses using an simple script.

- OS: HP-UX 11.11
- Server name: neftis.santpau.es
- Mail addresses: operacio@santpau.es or operacio@hsp.santpau.es

- Command to send mail from my script:

mailx -s DIARI_NEFTIS operacio@hsp.santpau.es < $FITXER_DADES

- Error message we got after every try:

[Attach #1: ""]
[Type: text/plain, Encoding: 7bit, Size: 310]

from root@localhost

from root@localhost

from root@localhost

from root@localhost

----- The following addresses had permanent fatal errors -----
operacio@hsp.santpau.es

----- Transcript of session follows -----
550 operacio@hsp.santpau.es... Host unknown (Name server: hsp.santpau.es: host not found)

[Attach #2: ""]
[Type: message/delivery-status, Encoding: 7bit, Size: 262]

Reporting-MTA: dns; neftis.santpau.es
Arrival-Date: Wed, 5 Oct 2005 12:17:21 +0200 (METDST)

Final-Recipient: RFC822; operacio@hsp.santpau.es
Action: failed
Status: 5.1.2
Remote-MTA: DNS; hsp.santpau.es
Last-Attempt-Date: Wed, 5 Oct 2005 12:17:21 +0200 (METDST)

[Attach #3: ""]
[Type: message/rfc822, Encoding: 7bit, Size: 6063]

[Muthukumar_5]

nslookup hsp.santpau.es

Is it resolving?

Else put related entries in /etc/hosts file and try now.

hth.

[Pete Randall]

It seems it can't find hsp.santpau.es. What does nslookup return?


Pete

[Arunvijai_4]

Can you able to ping hsp.santpau.es ? It seems to be host name resolution problem.

-Arun

[Carles Viaplana]

Thanks for your fast reply.

Here you're ping and nslookup results:

# ping hps.santpau.es
ping: unknown host hps.santpau.es
# nslookup hsp.santpau.es
Name Server: heidi.santpau.es
Address: 193.146.12.2

Trying DNS
Trying NIS
looking up FILES
*** No address information is available for "hsp.santpau.es"
#

Regards,

Carles

[Muthukumar_5]

Ok.

Go to your machine and edit /etc/hosts file as,

vi /etc/hosts

and add,

hsp.santpau.es

save it.

Do as,

# ping hsp.santpau.es
# nslookup hsp.santpau.es

Is it resolving now.

If it is success then you can able to send mail.

hth.

[Carles Viaplana]

Hello again,

Note that hsp.santpau.es and santpau.es are domains instead systems.

Mail server name is zurich and I can ping it from neftis:

# nslookup zurich
Name Server: heidi.santpau.es
Address: 193.146.12.2

Trying DNS
Name: zurich.santpau.es
Addresses: 172.17.0.5, 172.17.0.61

# ping zurich.santpau.es
PING zurich.santpau.es: 64 byte packets
64 bytes from 172.17.0.61: icmp_seq=0. time=0. ms
64 bytes from 172.17.0.61: icmp_seq=1. time=0. ms
64 bytes from 172.17.0.61: icmp_seq=2. time=0. ms

----zurich.santpau.es PING Statistics----
3 packets transmitted, 3 packets received, 0% packet loss
round-trip (ms) min/avg/max = 0/0/0
#

Regards,

Carles

[Arunvijai_4]

It couldn't find hsp.santpau.es in DNS, NIS and /etc/hosts. If you know the IP of hsp.santpau.es, try adding it to /etc/hosts

-Arun

[Muthukumar_5]

what is there in /etc/resolv.conf. Do you have domain name with that hsp.santpau.es?

hth.

[Carles Viaplana]

Hello,

Here you're resolv.conf file:

# more /etc/resolv.conf
domain santpau.es
nameserver 193.146.12.2
nameserver 193.146.12.3
nameserver 193.146.12.4
#

Just 2 comments:

1. Can I add a 2nd domain on resolv.conf?
2. I checked configuration on other system from same domain and resolv.conf file is exactly the same, so I don't believe this is the cause.

Regards,

Carles

[Muthukumar_5]

Use search for searching domain names as,

search hsp.santpau.es

hth.

[Muthukumar_5]

Put that in /etc/resolv.conf as,

search santpau.es hsp.santpau.es

remove domain line.

hth.

[Carles Viaplana]

Hello Muthukumar,

I changed /etc/resolv.conf as you told but it still fails.

Any idea?
Regards,

Carles

[Christopher Caldwell · Accepted solution]

The right hand side of the address
e.g. hsp.santpau.es
either has to look up in DNS as an A record or an MX record.

So one of the two of these needs to return a numerical address:
$nslookup hsp.santpau.es
or
$nslookup
set type=mx
hsp.santpau.es

=========================================

$ nslookup hsp.santpau.es
Name Server: A.B.C.D
Address: 1.2.3.4

Trying DNS
Non-authoritative answer:
Name: hsp.santpau.es
Address: 193.146.15.209

$ nslookup
Default Name Server: A.B.C.D
Address: 1.2.3.4

> set type=mx
> hsp.santpau.es
Name Server: A.B.C.D
Address: 1.2.3.4


Trying DNS
Non-authoritative answer:
hsp.santpau.es preference = 10, mail exchanger = teseo.santpau.es

Authoritative answers can be found from:
santpau.es nameserver = chico.rediris.es
santpau.es nameserver = teseo.santpau.es
santpau.es nameserver = teseo2.santpau.es
santpau.es nameserver = sun.rediris.es
teseo2.santpau.es internet address = 193.146.15.221

==========================================

Since both tests return a numerical address, sendmail will default to the MX. Thus mail destined for hsp.santpau.es should get delivered to teseo.santpau.es.

Sounds like you've either got a lookup problem (run the test I gave you), or someone has modified sendmail.cf to affect the local delivery of mail, and the configuration is incomplete.

[Carles Viaplana]

Hello all,

Here you're nslookup results:

# nslookup
Default Name Server: heidi.santpau.es
Address: 193.146.12.2

> set type=mx
> hsp.santpau.es
Name Server: heidi.santpau.es
Address: 193.146.12.2

Trying DNS
Trying NIS
looking up FILES
*** No address information is available for "hsp.santpau.es"
> exit
# nslookup hsp.santpau.es
Name Server: heidi.santpau.es
Address: 193.146.12.2

Trying DNS
Trying NIS
looking up FILES
*** No address information is available for "hsp.santpau.es"
#

Note that, as I already said before, I want to send mail from system to operacio@santpau.es but system can't.

Thanks in advance for your help!

Carles

[Muthukumar_5]

what you are getting for,

# nslookup santpau.es

I hope you are using setup only as,

# more /etc/resolv.conf
domain santpau.es
nameserver 193.146.12.2
nameserver 193.146.12.3
nameserver 193.146.12.4
#

Try as,

# /etc/resolv.conf
domain santpau.es
search hsp.santpau.es
nameserver 193.146.12.2
nameserver 193.146.12.3
nameserver 193.146.12.4
#

You have to configure hsp.santpau.es ip-address as santpau.es in /etc/hosts or register with dns.

hsp.santpau.es has to be resolved with ping / nslookup so that you can able to sendmail (s).

hth.

[Carles Viaplana]

It seems a network issue and network team is working on.

Thanks to all for your messages.