Recieving bounce back messages from one domain. the messages vary with each bounce back.

Posted on 2006-11-20
Last Modified: 2010-03-06
We have confirmed with the recipient that our domain isn't blacklisted on their end.

Error 1.

You do not have permission to send to this recipient. For Assistance, contact your system administrator.
< #5.7.1 smtp;550 5.7.1 Unable to relay for>

Error 2.

You do not have permission to send to this recipient. For Assistance, contact your system administrator.
< #5.7.1 smtp;550 5.7.1 <>... Relaying denied. Please check your mailserver first or restart your mail session.>

Error 3.

This is an automatically generated Delivery Status Notification.
Delivery to the following recipients failed.
Question by:acsservices
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

Expert Comment

ID: 17981930
Is your domain or the sending domain?

Author Comment

ID: 17981998
sorry for the confusion just trying to block out each end.

In Error 1 and 2, the first is our domain the second is recipients email address

In Error 3 the is the recipients email address

Accepted Solution

mmudry earned 63 total points
ID: 17982194
It definately sounds like something on the receivers side.  Do you have an SPF record defined?  
Office 365 Training for IT Pros

Learn how to provision tenants, synchronize on-premise Active Directory, implement Single Sign-On, customize Office deployment, and protect your organization with eDiscovery and DLP policies.  Only from Platform Scholar.

LVL 104

Assisted Solution

Sembee earned 62 total points
ID: 17982375
This would look like a problem with the remote server.
The middle message is what I would expect to get from an ISPs server that is used to send email, not a server that is used to receive email.
The others are fairly standard messages.

Put your domain in to and see if it throws back any errors in the email configuration section.


Expert Comment

ID: 17984842
Go to and check to see that you don't have errors.

go tot this website and enter your exchange server's public IP address and see if you ip address is on black list.

Did you setup PRT record for your Exchange Server's Public IP address.
Usually, your ISP who provided you with static ip address should do this.

Also do an telnet test with the remote server and see what happens.
you can use the cmd line or you can use this website.


Expert Comment

ID: 17984846
The first link should be


Featured Post

Best Practices: Disaster Recovery Testing

Besides backup, any IT division should have a disaster recovery plan. You will find a few tips below relating to the development of such a plan and to what issues one should pay special attention in the course of backup planning.

Question has a verified solution.

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

After hours on line I found a solution which pointed to the inherited Active Directory permissions . You have to give/allow permissions to the "Exchange trusted subsystem" for the user in the Active Directory...
Check out this step-by-step guide for using the newly updated Experts Exchange mobile app—released on May 30.
To show how to create a transport rule in Exchange 2013. We show this process by using the Exchange Admin Center. Log into Exchange Admin Center.: First we need to log into the Exchange Admin Center. Navigate to the Mail Flow >> Rules tab.:  To cr…
Exchange organizations may use the Journaling Agent of the Transport Service to archive messages going through Exchange. However, if the Transport Service is integrated with some email content management application (such as an antispam), the admini…

695 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