Re: Unable to send mail to a particular domain

  • From: Sarbjit Singh Gill <ssgill@xxxxxxxxxxxxxxxxxxxx>
  • To: "[ExchangeList]" <exchangelist@xxxxxxxxxxxxx>
  • Date: Fri, 1 Oct 2004 11:49:49 +0800

Are you doing any RBL based blocking. I now Ex2k does not do 
it out of the box, but you may have some other tools added 
to you ex2k environment. The other domain may have been 
added to the RBL

Just my $0.02

---- Original message ----
>Date: Thu, 30 Sep 2004 22:05:13 -0400
>From: Danny <nocmonkey@xxxxxxxxx>  
>Subject: [exchangelist] Re: Unable to send mail to a 
particular domain  
>To: "[ExchangeList]" <exchangelist@xxxxxxxxxxxxx>
>On Thu, 30 Sep 2004 21:04:47 -0600, Gautam 
<jkakkar@xxxxxxxxx> wrote:
>> Hi
>> We are using Exchange 2000 Enterprise Editioin. Since 
couple of days we
>> are not able to send mails to a particular domain whereas 
we are able to
>> send mails to all other domains. We have spoken to the 
Exchange Admin of
>> that firm and he says that he hasn't filtered anything 
nor has he blocked
>> us.They are using Sendmail as a MailServer.
>> But the firm have the same ISP and I have also spoken to 
our ISP but they
>> also say that they haven't put an Access List so that we 
are not able to
>> route mails to that domain.
>> I even tried to create a connector but when i give the 
address space its
>> give an error that the domain does not exist. But when i 
do a NSLOOKUP it
>> resolves and i am also able to do telnet on port 25.
>> Please tell me what should i do to resolve the issue.
>Post the NDR (non-delivery report) error message you 
receive when you
>attempt to send them an email.
>Tell them to check their Sendmail server logs at the same 
time. Compare notes.
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Sarbjit Singh Gill

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