RE: Relay permissions error ...

  • From: "John Tolmachoff \(Lists\)" <johnlist@xxxxxxxxxxxxxxxxxxx>
  • To: "'[ExchangeList]'" <exchangelist@xxxxxxxxxxxxx>
  • Date: Tue, 7 Oct 2003 06:43:22 -0700

Unless you fully understand DNS blacklists and how they should be used, you
should not be using them.

NO ONE SHOULD BLOCK MESSAGES BASED ON DNS BLACKLISTS ALONE!

John Tolmachoff MCSE CSSA
Engineer/Consultant
eServices For You
www.eservicesforyou.com

> -----Original Message-----
> From: Donavon Yelton [mailto:dyelton@xxxxxxxxxxxxxxxxxxxx]
> Sent: Tuesday, October 07, 2003 4:11 AM
> To: [ExchangeList]
> Subject: [exchangelist] RE: Relay permissions error ...
> 
> http://www.MSExchange.org/
> 
> I'm not understanding how this would benefit my situation.
> 
> Also, I've tried sending e-mail from an address that's never been used
> before to send e-mail to that address.  They seem to be listed on a
> public DNS blacklist and we're not.  We check domains against public DNS
> blacklists before mail comes in/out so I'm assuming since their on the
> DNS blacklist this is why I can't send e-mail to them so I'm wondering
> if there's anything I can really do other than take our blacklisting
> checks out which I don't want to do.  There has to be a way to bypass
> the DNS blacklist queries for a certain address on the server, but I
> could be wrong.  BTW, I'm using the built in Exchange 2003 DNS
> blacklisting abilities.
> 
> -----Original Message-----
> From: KEN MORRIS [mailto:KMORRIS@xxxxxxx]
> Sent: Monday, October 06, 2003 5:08 PM
> To: [ExchangeList]
> Subject: [exchangelist] RE: Relay permissions error ...
> 
> 
> http://www.MSExchange.org/
> 
> Donavan,
> >From very recent experience......  Uncheck the "Allow all computers
> which successfully authenticate to relay, regardless of the list above."
> This allows relaying problems for you.
> 
> Have you tried another user sending to the same address?
> Ken
> 
> -----Original Message-----
> From: Donavon Yelton [mailto:dyelton@xxxxxxxxxxxxxxxxxxxx]
> Sent: Monday, October 06, 2003 9:45 AM
> To: [ExchangeList]
> Subject: [exchangelist] Relay permissions error ...
> 
> 
> http://www.MSExchange.org/
> 
> I'm getting the following error from a user inside of our e-mail system.
> This is the first time I've had a problem like this at this company with
> this setup and I'm a little baffled at why I'm getting the error.
> 
> 
> 
> Your message did not reach some or all of the intended recipients.
> 
>       Subject:        various
>       Sent:   10/6/2003 9:19 AM
> 
> The following recipient(s) could not be reached:
> 
>       email@xxxxxxxxxxx on 10/6/2003 9:19 AM
>             You do not have permission to send to this recipient.  For
> assistance, contact your system administrator.
>             <server.domain.local #5.7.1 smtp;550 5.7.1 Unable to relay
> for email@xxxxxxxxxxx>
> 
> 
> I tracked the email and it started outbound transfer of the message but
> then a NDR was generated.  I'm running Exchange 2003.  I've double
> checked the relay settings on the SMTP virtual server and "Only the list
> below" is checked as is "Allow all computers which successfully
> authenticate to relay, regardless of the list above."  Any help is
> appreciated!
> 
> 
> Donavon Yelton
> Manager of Information Systems
> Carpenter Industries, Inc.
> (704) 743-2068
> http://www.dennis-carpenter.com/
> 
>   _____
> 
> THIS MESSAGE CONTAINS INFORMATION INTENDED ONLY FOR THE USE
> OF THE
> INDIVIDUAL OR ENTITY NAMED ABOVE. IF THE READER OF THIS MESSAGE
> IS NOT
> THE RECIPIENT, OR THE EMPLOYEE OR AGENT RESPONSIBLE TO DELIVER
> IT TO THE
> INTENDED RECIPIENT, YOU ARE HEREBY NOTIFIED THAT ANY
> DISSEMINATION,
> DISTRIBUTION OR COPYING OF THIS MESSAGE IS STRICTLY PROHIBITED.
> IF YOU
> HAVE RECEIVED THIS MESSAGE IN ERROR, PLEASE NOTIFY US
> IMMEDIATELY VIA
> RETURN-E-MAIL AND DELETE THIS MESSAGE FROM YOUR SYSTEM. THANK
> YOU.
> 
> Carpenter Industries, Inc.
>   _____
> 
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