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sendmail or dns problem

sendmail or dns problem

Post by Cher » Thu, 12 Apr 2001 14:52:36



I am troubleshooting a sendmail question, and I really ran out of
idea. Can you guys help?


Subject: test
EOT

relay...
220 mail.internal.test.com ESMTP Sendmail 8.9.0/8.9.0; Mon, 9 Apr 2001
13:06:45 -0700 (PDT)

Quote:>>> EHLO kitty.internal.test.com

250-mail.la.internal.test.com Hello [10.0.0.40], pleased to meet you
250-EXPN
250-VERB
250-8BITMIME
250-SIZE
250-DSN
250-ONEX
250-ETRN
250-XUSR
250 HELP


But, I can resolve the dns  both on the server itself and the mail
server.

# nslookup kitty.internal.test.com
Server:  ns1.internal.test.com
Address:  10.0.0.4

Name:    kitty.internal.test.com
Address:  10.0.0.1

# nslookup 10.0.0.1
Server:  ns1.internal.test.com
Address:  10.0.0.4

Name:    kitty.internal.test.com
Address:  10.0.0.1

please shed some light

 
 
 
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sendmail or dns problem

Post by Kjetil Torgrim Homm » Thu, 12 Apr 2001 15:48:57



>   I am troubleshooting a sendmail question, and I really ran out of
>   idea. Can you guys help?


>   Subject: test
>   EOT

>   relay...
>   220 mail.internal.test.com ESMTP Sendmail 8.9.0/8.9.0; Mon, 9 Apr 2001
>   13:06:45 -0700 (PDT)
>   >>> EHLO kitty.internal.test.com
>   250-mail.la.internal.test.com Hello [10.0.0.40], pleased to meet you
>   250-EXPN
>   250-VERB
>   250-8BITMIME
>   250-SIZE
>   250-DSN
>   250-ONEX
>   250-ETRN
>   250-XUSR
>   250 HELP



>   But, I can resolve the dns  both on the server itself and the mail
>   server.

>   please shed some light

I believe you need to fix the reverse mapping.

BTW, you should use "example.com" rather than "test.com" since the
latter is in actual use.

Kjetil T.

 
 
 
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sendmail or dns problem

Post by Mikhail Tatauro » Thu, 12 Apr 2001 20:48:36






because you domain - internal.test.com
kitty.internal.test.com - it' host name in you domain

Quote:

> But, I can resolve the dns  both on the server itself and the mail
> server.

--
Mikhail Tataurov
http://www.deltabank.ru/~mike
 
 
 
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sendmail or dns problem

Post by Daniel Tat » Thu, 12 Apr 2001 22:19:48


If you're having this problem with legitimate domains, a kludge is to add
these into your config.m4 and recompile the cf

FEATURE(`accept_unresolvable_domains')dnl

There are security concerns with this, alibiet minor ones.

This will NOT fix a legit resolver problem - it will just stop sendmail from
griping.


> I am troubleshooting a sendmail question, and I really ran out of
> idea. Can you guys help?


> Subject: test
> EOT

> relay...
> 220 mail.internal.test.com ESMTP Sendmail 8.9.0/8.9.0; Mon, 9 Apr 2001
> 13:06:45 -0700 (PDT)
> >>> EHLO kitty.internal.test.com
> 250-mail.la.internal.test.com Hello [10.0.0.40], pleased to meet you
> 250-EXPN
> 250-VERB
> 250-8BITMIME
> 250-SIZE
> 250-DSN
> 250-ONEX
> 250-ETRN
> 250-XUSR
> 250 HELP



> But, I can resolve the dns  both on the server itself and the mail
> server.

> # nslookup kitty.internal.test.com
> Server:  ns1.internal.test.com
> Address:  10.0.0.4

> Name:    kitty.internal.test.com
> Address:  10.0.0.1

> # nslookup 10.0.0.1
> Server:  ns1.internal.test.com
> Address:  10.0.0.4

> Name:    kitty.internal.test.com
> Address:  10.0.0.1

> please shed some light

 
 
 
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sendmail or dns problem

Post by Cher » Sat, 14 Apr 2001 14:22:06


yes..but that is too dangerous..

cherry

>If you're having this problem with legitimate domains, a kludge is to add
>these into your config.m4 and recompile the cf

>FEATURE(`accept_unresolvable_domains')dnl

>There are security concerns with this, alibiet minor ones.

>This will NOT fix a legit resolver problem - it will just stop sendmail from
>griping.



>> I am troubleshooting a sendmail question, and I really ran out of
>> idea. Can you guys help?


>> Subject: test
>> EOT

>> relay...
>> 220 mail.internal.test.com ESMTP Sendmail 8.9.0/8.9.0; Mon, 9 Apr 2001
>> 13:06:45 -0700 (PDT)
>> >>> EHLO kitty.internal.test.com
>> 250-mail.la.internal.test.com Hello [10.0.0.40], pleased to meet you
>> 250-EXPN
>> 250-VERB
>> 250-8BITMIME
>> 250-SIZE
>> 250-DSN
>> 250-ONEX
>> 250-ETRN
>> 250-XUSR
>> 250 HELP



>> But, I can resolve the dns  both on the server itself and the mail
>> server.

>> # nslookup kitty.internal.test.com
>> Server:  ns1.internal.test.com
>> Address:  10.0.0.4

>> Name:    kitty.internal.test.com
>> Address:  10.0.0.1

>> # nslookup 10.0.0.1
>> Server:  ns1.internal.test.com
>> Address:  10.0.0.4

>> Name:    kitty.internal.test.com
>> Address:  10.0.0.1

>> please shed some light

 
 
 
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sendmail or dns problem

Post by Cher » Sat, 14 Apr 2001 14:23:36


Quote:>I believe you need to fix the reverse mapping.

I have the reverse

Quote:>BTW, you should use "example.com" rather than "test.com" since the
>latter is in actual use.

yes, I think that I gave a lousy example and confused the hack people
and got myself no good answer :-(
Quote:

>Kjetil T.

 
 
 
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