[2 days left] What’s wrong with your cloud strategy? Learn why multicloud solutions matter with Nimble Storage.Register Now

x
?
Solved

SMTP error from remote mail server after RCPT

Posted on 2007-03-18
8
Medium Priority
?
16,150 Views
Last Modified: 2012-06-27
Hi

A problem i have here, which so far as far as i have got from the ISP is that it is a server problem is causing greif.

basically, a client has a mail server accepting emails on domain xxx.com.au
i have added xxx.com as an additional email address, and in exchange, it accepts both xxx.com.au and xxx.com

the domain on the server is xxx.com.au , i have made xxx.com the primary SMTP email address, so emails send out as xxx.com
the ISP has added xxx.com to the DNS mx entry so all emails, xxx.com and xxx.com.au are sent to the server.

the problem i am having is that 3 or 4 clients are experiencing problems emailing the server,
the rest dont.
So on the general, the setup works fine, and when it doesnt it bounces back to the sender with this header.

------------------------------------------------------------------------------------------

A message that you sent could not be delivered to one or more of its recipients. This is a permanent error. The following address(es) failed:

  paul@xxx.com
    SMTP error from remote mail server after RCPT
TO:<paul@xxx.com>:
    host mailx.comindico.com.au [203.194.27.12]: 554 <paul@xxx.com>:
    Relay access denied


-------------------------------------------------------------------------------------------


the setup was done about 3 months ago, so it isnt a propogation problem,
the ISP has said its the server


please help,.



0
Comment
Question by:itbasement
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
  • 2
  • 2
  • +1
8 Comments
 
LVL 3

Expert Comment

by:TokenCelt
ID: 18745878
Its possible that your ISP has added net HOSTS that relay mail to your exchange server.

I think your SMTP service hase been set to recieve email from only specific IP addresses, this is good as it stops your exchange server acting as an open relay. Ask your ISP for a list of IP addresses that will be sending mail to your server and then check that there all listed on the relay restrictions on your SMTP virtual server.

-Open Exchange System Manager
-Navigate to <organisataion> -> Administrative Groups -> <site> -> Servers -> <server> -> Protocols -> SMTP
 -Right Click Default SMTP Virtual Server
- Click the access tab
- Click the relay button
- check the IP addresses against your ISP's relay servers

TC
0
 
LVL 3

Expert Comment

by:TokenCelt
ID: 18745883
typo in the fist line, I meant new hosts not net hosts!

TC
0
 
LVL 9

Expert Comment

by:Bill_Fleury
ID: 18751649
I've seen this problem here in North America where a mail server is hosted on a DSL line and certain hosts cannot deliver mail to them.  The resolution is setting our MTU to match our ISP's, in our case it is 1492.  Perhaps you are running into a similar problem?
0
Free learning courses: Active Directory Deep Dive

Get a firm grasp on your IT environment when you learn Active Directory best practices with Veeam! Watch all, or choose any amount, of this three-part webinar series to improve your skills. From the basics to virtualization and backup, we got you covered.

 
LVL 1

Author Comment

by:itbasement
ID: 18760656
techs from ISP are looking into it still

they havnt fixed it yet, but are looking in the direction of a secondary mail exchage error
0
 
LVL 9

Expert Comment

by:Bill_Fleury
ID: 18762142
Well, I guess that will fix the symptoms of the problem, but still won't fix or explain the underlying issue.
0
 
LVL 1

Author Comment

by:itbasement
ID: 18875021
was a secondary mail exchange configuration error
0
 
LVL 1

Accepted Solution

by:
Computer101 earned 0 total points
ID: 20238028
PAQed with points refunded (500)

Computer101
EE Admin
0

Featured Post

Survive A High-Traffic Event with Percona

Your application or website rely on your database to deliver information about products and services to your customers. You can’t afford to have your database lose performance, lose availability or become unresponsive – even for just a few minutes.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Know the reasons and solutions to move/import EDB to New Exchange Server. Also, find out how to recover an Exchange .edb file and to restore the file back.
Here in this article, you will get a step by step guidance on how to restore an Exchange database to a recovery database. Get a brief on Recovery Database and how it can be used to restore Exchange database in this section!
To add imagery to an HTML email signature, you have two options available to you. You can either add a logo/image by embedding it directly into the signature or hosting it externally and linking to it. The vast majority of email clients display l…
This video discusses moving either the default database or any database to a new volume.

649 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question