On Sun, 3 Mar 2002, Amir Tal wrote:

> When sending mail, I get :
>
>
> The original message was received at Sun, 3 Mar 2002 13:28:26 +0200
> from whatsup.co.il [192.168.141.34]
>
>  ----- The following addresses had permanent fatal errors -----
> <[EMAIL PROTECTED]>
>   (reason: 550 Host unknown)
>
>  ----- Transcript of session follows -----
> 550 5.1.2 <[EMAIL PROTECTED]>... Host unknown (Name server:
> 194.90.1.5: host not found)

Is this not the reply of the name server 194.90.1.5 that the host
hotmail.com (or maybe [EMAIL PROTECTED]) is not found?


This must have been either a malformed address or a transient error (but
why is error 550 returned, and not some 4xx?):

 >host hotmail.com 194.90.1.5
Using domain server 194.90.1.5:
hotmail.com has address 64.4.54.7
hotmail.com has address 64.4.43.7
hotmail.com has address 64.4.44.7
hotmail.com has address 64.4.45.7
hotmail.com has address 64.4.52.7
hotmail.com has address 64.4.53.7
hotmail.com mail is handled (pri=5) by mx13.hotmail.com
hotmail.com mail is handled (pri=5) by mx14.hotmail.com
hotmail.com mail is handled (pri=5) by mx15.hotmail.com
hotmail.com mail is handled (pri=5) by mx01.hotmail.com
hotmail.com mail is handled (pri=5) by mx02.hotmail.com
hotmail.com mail is handled (pri=5) by mx04.hotmail.com
hotmail.com mail is handled (pri=5) by mx05.hotmail.com
hotmail.com mail is handled (pri=5) by mx06.hotmail.com
hotmail.com mail is handled (pri=5) by mx07.hotmail.com
hotmail.com mail is handled (pri=5) by mx08.hotmail.com
hotmail.com mail is handled (pri=5) by mx09.hotmail.com
hotmail.com mail is handled (pri=5) by mx10.hotmail.com
hotmail.com mail is handled (pri=5) by mx11.hotmail.com
hotmail.com mail is handled (pri=5) by mx12.hotmail.com


>
> This is netvision's dns. I can ping this ip,

Can you resolve names from that address? see the above command

> I am able to receive mail as well. Only when sending it claims that the
> dns server 194.90.1.5 is not found.
> /etc/resolv.conf is ok, and so are domaintable and mailertable.

(I supopse you also run a local named of your own)

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