I am running Exchange 2000 server. I can send and receive emails without any issues. The problem:
-When a client from the internet sends mail to just username@mydomain.com, I get the message. No NDR message.
-When the client sends mail to username@mydomain.com with other recipients to, cc, or bcc, ie. (anyone@anydomain.com; anybody@anyplace.com) doesn't matter what email address. I used the above address to illustrate the issue. I get the email and so does all the other recipients but the sender receives an NDR message. The NDR message is:
Your message did not reach some or all of the intended recipients.
Subject: test message
Sent: 3/22/2004 10:13 AM
The following recipient(s) could not be reached:
anyone@mydomain.com on 3/22/2004 10:11 AM
anybody@mydomain.com on 3/22/2004 10:11 AM
The e-mail account does not exist at the organization this message was sent to. Check the e-mail address, or contact the recipient directly to find out the correct address.
<exchangeserver.mydomain.com #5.1.1>
For some reason even though the e-mail was sent sucessfully to all recipients, the sender is getting this NDR message and which automatically appends mydomain.com to the recipients list. And of course since these accounts doesn't exists in my domain it sends a NDR to the sender.
Has anyone seen this issue before? Could it be a virus? It just suddenly happened. This exchange server has been functional for about 2 years without incident.
-When a client from the internet sends mail to just username@mydomain.com, I get the message. No NDR message.
-When the client sends mail to username@mydomain.com with other recipients to, cc, or bcc, ie. (anyone@anydomain.com; anybody@anyplace.com) doesn't matter what email address. I used the above address to illustrate the issue. I get the email and so does all the other recipients but the sender receives an NDR message. The NDR message is:
Your message did not reach some or all of the intended recipients.
Subject: test message
Sent: 3/22/2004 10:13 AM
The following recipient(s) could not be reached:
anyone@mydomain.com on 3/22/2004 10:11 AM
anybody@mydomain.com on 3/22/2004 10:11 AM
The e-mail account does not exist at the organization this message was sent to. Check the e-mail address, or contact the recipient directly to find out the correct address.
<exchangeserver.mydomain.com #5.1.1>
For some reason even though the e-mail was sent sucessfully to all recipients, the sender is getting this NDR message and which automatically appends mydomain.com to the recipients list. And of course since these accounts doesn't exists in my domain it sends a NDR to the sender.
Has anyone seen this issue before? Could it be a virus? It just suddenly happened. This exchange server has been functional for about 2 years without incident.