Question

HELP!!! - "550 5.7.1 Unable to relay for" problem

Asked by: nhtp

new issue, im using an external computer running internet mail service over outlook 2000 and whenever i try to send an email to an outside recipient (i.e. @hotmail.com,@yahoo.com) i get an administrator error message reading
"some recipients did not receive the message
  subject:xxxxx
  sent :xx/xx/xxxx(date)
  could not reach following recipients
  xxxx@hotmail.com on xx/xx/xxxx
  550 5.7.1 Unable to relay for xxxx@hotmail.com"

im not quite sure what the problem is, may be the server, but i never had this problems before, any clues????

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Asked On
2003-07-23 at 16:08:41ID20688455
Tags

relay

,

unable

,

550

Topic

Exchange Email Server

Participating Experts
3
Points
30
Comments
8

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Answers

 

by: subsoniqPosted on 2003-07-23 at 16:15:49ID: 8990847

What version of exchange server are you using?  what OS is it running on?  Have you configured outlook to authenticate to the server when sending SMTP mail?  Exchange 2000 by default will require authentication before allowing you to send email through it, unless it's destined for a mailbox on that server (or that exchange org).

 

by: nhtpPosted on 2003-07-24 at 07:29:02ID: 8995468

im running exchange 2000 over win2000 server, and yes, the oultook is configured to authenticate the SMTP server, iread there somewhere that it had something to do with "realying"

 

by: subsoniqPosted on 2003-07-24 at 08:02:46ID: 8995839

You can check your relay settings with the Exchange System Manager (ESM) by drilling down to your servers SMTP protocol settings and getting the properties of the default virtual server, go to the Access tab and select the Relay button near the bottom, the "Only the List below" option should be selected, and near the bottom the "Allow all computers which succesfully authenticate to relay, regardless of the list above" box should be checked.

 

by: nhtpPosted on 2003-07-24 at 09:11:41ID: 8996462

CHECKED AND CHECKED, but nothings happened, could it be any service? the problem started yesterday, and everythings working fine inside my lan...outside is the problem...any clues??

 

by: nhtpPosted on 2003-07-24 at 10:14:22ID: 8996984

ok i finally found it, someone enabled an SMTP filter without settings, that was blocking our outbound access,, but everythings working now
thanks!

 

by: manuel_hPosted on 2003-07-24 at 15:06:29ID: 8999471

By SMTP filter do you mean the Relay Restrictions?

 

by: musa67bdPosted on 2003-10-20 at 22:36:37ID: 9588520

I have configured a MS Exchange Server 2000 for my parent Domain, which is running smoothly (in the domain, outgoing, incoming). I configured the same server for mailing facilities for a Child domain and it is working in the parent & child domain. Out going mail is delivering but mail from out side of the domain is not reached and an error is giving while returning the mail:
=============
Reporting-MTA: dns;hotmail.com
Received-From-MTA: dns;mail.hotmail.com
Arrival-Date: Mon, 20 Oct 2003 02:24:16 -0700

Final-Recipient: rfc822; parrot@child.parent.com
Action: failed
Status: 5.7.1
Diagnostic-Code: smtp;550 5.7.1 Unable to relay for
parrot@child.parent.com
================

Please help me with a practical solution.

 

by: subsoniqPosted on 2003-10-21 at 11:15:16ID: 9592641

Start a new question, don't piggy back off of someone elses question.

20120131-EE-VQP-002

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